PlzNavigate: make content unit tests work with browser side navigation

content/browser/web_contents/web_contents_impl_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/frame_host/cross_site_transferring_request.h"
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
@@ skipping 464 matching lines @@
 TEST_F(WebContentsImplTest, CrossSiteBoundaries) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   int orig_rvh_delete_count = 0;
   orig_rfh->GetRenderViewHost()->set_delete_counter(&orig_rvh_delete_count);
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use first RenderViewHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  orig_rfh->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   // Keep the number of active frames in orig_rfh's SiteInstance non-zero so
   // that orig_rfh doesn't get deleted when it gets swapped out.
   orig_rfh->GetSiteInstance()->increment_active_frame_count();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh->GetRenderViewHost(), contents()->GetRenderViewHost());
   EXPECT_EQ(url, contents()->GetLastCommittedURL());
   EXPECT_EQ(url, contents()->GetVisibleURL());
 
   // Navigate to new site
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    orig_rfh->PrepareForCommit(url2);
+  }
   EXPECT_TRUE(contents()->cross_navigation_pending());
   EXPECT_EQ(url, contents()->GetLastCommittedURL());
   EXPECT_EQ(url2, contents()->GetVisibleURL());
   TestRenderFrameHost* pending_rfh = contents()->GetPendingMainFrame();
   int pending_rvh_delete_count = 0;
   pending_rfh->GetRenderViewHost()->set_delete_counter(
       &pending_rvh_delete_count);
 
   // Navigations should be suspended in pending_rfh until BeforeUnloadACK.
-  EXPECT_TRUE(pending_rfh->are_navigations_suspended());
-  orig_rfh->SendBeforeUnloadACK(true);
-  EXPECT_FALSE(pending_rfh->are_navigations_suspended());
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    EXPECT_TRUE(pending_rfh->are_navigations_suspended());
+    orig_rfh->SendBeforeUnloadACK(true);
+    EXPECT_FALSE(pending_rfh->are_navigations_suspended());
+  }
 
   // DidNavigate from the pending page
   contents()->TestDidNavigate(
       pending_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2 = contents()->GetSiteInstance();
 
   // Keep the number of active frames in pending_rfh's SiteInstance
   // non-zero so that orig_rfh doesn't get deleted when it gets
   // swapped out.
   pending_rfh->GetSiteInstance()->increment_active_frame_count();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(pending_rfh, contents()->GetMainFrame());
   EXPECT_EQ(url2, contents()->GetLastCommittedURL());
   EXPECT_EQ(url2, contents()->GetVisibleURL());
   EXPECT_NE(instance1, instance2);
   EXPECT_TRUE(contents()->GetPendingMainFrame() == NULL);
   // We keep the original RFH around, swapped out.
   EXPECT_TRUE(contents()->GetRenderManagerForTesting()->IsOnSwappedOutList(
       orig_rfh));
   EXPECT_EQ(orig_rvh_delete_count, 0);
 
   // Going back should switch SiteInstances again.  The first SiteInstance is
   // stored in the NavigationEntry, so it should be the same as at the start.
   // We should use the same RFH as before, swapping it back in.
   controller().GoBack();
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    contents()->GetMainFrame()->PrepareForCommit(url);
+  }
   TestRenderFrameHost* goback_rfh = contents()->GetPendingMainFrame();
   EXPECT_EQ(orig_rfh, goback_rfh);
   EXPECT_TRUE(contents()->cross_navigation_pending());
 
   // Navigations should be suspended in goback_rfh until BeforeUnloadACK.
-  EXPECT_TRUE(goback_rfh->are_navigations_suspended());
-  pending_rfh->SendBeforeUnloadACK(true);
-  EXPECT_FALSE(goback_rfh->are_navigations_suspended());
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    EXPECT_TRUE(goback_rfh->are_navigations_suspended());
+    pending_rfh->SendBeforeUnloadACK(true);
+    EXPECT_FALSE(goback_rfh->are_navigations_suspended());
+  }
 
   // DidNavigate from the back action
   contents()->TestDidNavigate(goback_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(goback_rfh, contents()->GetMainFrame());
   EXPECT_EQ(instance1, contents()->GetSiteInstance());
   // The pending RFH should now be swapped out, not deleted.
   EXPECT_TRUE(contents()->GetRenderManagerForTesting()->
       IsOnSwappedOutList(pending_rfh));
   EXPECT_EQ(pending_rvh_delete_count, 0);
@@ skipping 11 matching lines @@
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
 
   int orig_rvh_delete_count = 0;
   orig_rfh->GetRenderViewHost()->set_delete_counter(&orig_rvh_delete_count);
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use first RenderViewHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh->GetRenderViewHost(), contents()->GetRenderViewHost());
 
   // Simulate a renderer crash.
   orig_rfh->GetRenderViewHost()->set_render_view_created(false);
   orig_rfh->set_render_frame_created(false);
 
   // Navigate to new site.  We should not go into PENDING.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url2);
   TestRenderFrameHost* new_rfh = contents()->GetMainFrame();
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_TRUE(contents()->GetPendingMainFrame() == NULL);
   EXPECT_NE(orig_rfh, new_rfh);
   EXPECT_EQ(orig_rvh_delete_count, 1);
 
   // DidNavigate from the new page
   contents()->TestDidNavigate(new_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2 = contents()->GetSiteInstance();
 
@@ skipping 11 matching lines @@
 // both contentses to a new site will place both contentses in a single
 // SiteInstance.
 TEST_F(WebContentsImplTest, NavigateTwoTabsCrossSite) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use first RenderViewHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   // Open a new contents with the same SiteInstance, navigated to the same site.
   scoped_ptr<TestWebContents> contents2(
       TestWebContents::Create(browser_context(), instance1));
   contents2->GetController().LoadURL(url, Referrer(),
                                      ui::PAGE_TRANSITION_TYPED,
                                      std::string());
+  contents2->GetMainFrame()->PrepareForCommit(url);
   // Need this page id to be 2 since the site instance is the same (which is the
   // scope of page IDs) and we want to consider this a new page.
   contents2->TestDidNavigate(
       contents2->GetMainFrame(), 2, url, ui::PAGE_TRANSITION_TYPED);
 
   // Navigate first contents to a new site.
   const GURL url2a("http://www.yahoo.com");
   controller().LoadURL(
       url2a, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  orig_rfh->SendBeforeUnloadACK(true);
+  orig_rfh->PrepareForCommit(url2a);
   TestRenderFrameHost* pending_rfh_a = contents()->GetPendingMainFrame();
   contents()->TestDidNavigate(
       pending_rfh_a, 1, url2a, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2a = contents()->GetSiteInstance();
   EXPECT_NE(instance1, instance2a);
 
   // Navigate second contents to the same site as the first tab.
   const GURL url2b("http://mail.yahoo.com");
   contents2->GetController().LoadURL(url2b, Referrer(),
                                      ui::PAGE_TRANSITION_TYPED,
                                      std::string());
   TestRenderFrameHost* rfh2 = contents2->GetMainFrame();
-  rfh2->SendBeforeUnloadACK(true);
+  rfh2->PrepareForCommit(url2b);
   TestRenderFrameHost* pending_rfh_b = contents2->GetPendingMainFrame();
   EXPECT_TRUE(pending_rfh_b != NULL);
   EXPECT_TRUE(contents2->cross_navigation_pending());
 
   // NOTE(creis): We used to be in danger of showing a crash page here if the
   // second contents hadn't navigated somewhere first (bug 1145430).  That case
   // is now covered by the CrossSiteBoundariesAfterCrash test.
   contents2->TestDidNavigate(
       pending_rfh_b, 2, url2b, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2b = contents2->GetSiteInstance();
@@ skipping 14 matching lines @@
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   int orig_rvh_delete_count = 0;
   orig_rfh->GetRenderViewHost()->set_delete_counter(&orig_rvh_delete_count);
   SiteInstanceImpl* orig_instance = contents()->GetSiteInstance();
 
   browser_client.set_assign_site_for_url(false);
   // Navigate to an URL that will not assign a new SiteInstance.
   const GURL native_url("non-site-url://stuffandthings");
   controller().LoadURL(
       native_url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(native_url);
   contents()->TestDidNavigate(
       orig_rfh, 1, native_url, ui::PAGE_TRANSITION_TYPED);
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
   EXPECT_EQ(native_url, contents()->GetLastCommittedURL());
   EXPECT_EQ(native_url, contents()->GetVisibleURL());
   EXPECT_EQ(orig_instance, contents()->GetSiteInstance());
   EXPECT_EQ(GURL(), contents()->GetSiteInstance()->GetSiteURL());
   EXPECT_FALSE(orig_instance->HasSite());
 
   browser_client.set_assign_site_for_url(true);
   // Navigate to new site (should keep same site instance).
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(native_url, contents()->GetLastCommittedURL());
   EXPECT_EQ(url, contents()->GetVisibleURL());
   EXPECT_FALSE(contents()->GetPendingMainFrame());
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   // Keep the number of active frames in orig_rfh's SiteInstance
   // non-zero so that orig_rfh doesn't get deleted when it gets
   // swapped out.
   orig_rfh->GetSiteInstance()->increment_active_frame_count();
 
   EXPECT_EQ(orig_instance, contents()->GetSiteInstance());
   EXPECT_TRUE(
       contents()->GetSiteInstance()->GetSiteURL().DomainIs("google.com"));
   EXPECT_EQ(url, contents()->GetLastCommittedURL());
 
   // Navigate to another new site (should create a new site instance).
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    orig_rfh->PrepareForCommit(url2);
+  }
   EXPECT_TRUE(contents()->cross_navigation_pending());
   EXPECT_EQ(url, contents()->GetLastCommittedURL());
   EXPECT_EQ(url2, contents()->GetVisibleURL());
   TestRenderFrameHost* pending_rfh = contents()->GetPendingMainFrame();
   int pending_rvh_delete_count = 0;
   pending_rfh->GetRenderViewHost()->set_delete_counter(
       &pending_rvh_delete_count);
 
   // Navigations should be suspended in pending_rvh until BeforeUnloadACK.
-  EXPECT_TRUE(pending_rfh->are_navigations_suspended());
-  orig_rfh->SendBeforeUnloadACK(true);
-  EXPECT_FALSE(pending_rfh->are_navigations_suspended());
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableBrowserSideNavigation)) {
+    EXPECT_TRUE(pending_rfh->are_navigations_suspended());
+    orig_rfh->SendBeforeUnloadACK(true);
+    EXPECT_FALSE(pending_rfh->are_navigations_suspended());
+  }
 
   // DidNavigate from the pending page.
   contents()->TestDidNavigate(
       pending_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* new_instance = contents()->GetSiteInstance();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(pending_rfh, contents()->GetMainFrame());
   EXPECT_EQ(url2, contents()->GetLastCommittedURL());
   EXPECT_EQ(url2, contents()->GetVisibleURL());
@@ skipping 73 matching lines @@
       browser_context());
   entry->SetPageID(0);
   entries.push_back(entry);
   controller().Restore(
       0,
       NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY,
       &entries);
   ASSERT_EQ(0u, entries.size());
   ASSERT_EQ(1, controller().GetEntryCount());
   controller().GoToIndex(0);
+  orig_rfh->PrepareForCommit(regular_url);
   contents()->TestDidNavigate(
       orig_rfh, 0, regular_url, ui::PAGE_TRANSITION_RELOAD);
   EXPECT_EQ(orig_instance, contents()->GetSiteInstance());
   EXPECT_TRUE(orig_instance->HasSite());
 
   // Navigate to another site and verify that a new SiteInstance was created.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  orig_rfh->PrepareForCommit(url);
   contents()->TestDidNavigate(
       contents()->GetPendingMainFrame(), 2, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_NE(orig_instance, contents()->GetSiteInstance());
 
   // Cleanup.
   DeleteContents();
 }
 
 // Test that we can find an opener RVH even if it's pending.
 // http://crbug.com/176252.
 TEST_F(WebContentsImplTest, FindOpenerRVHWhenPending) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
 
   // Navigate to a URL.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  orig_rfh->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   // Start to navigate first tab to a new site, so that it has a pending RVH.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  orig_rfh->SendBeforeUnloadACK(true);
+  orig_rfh->PrepareForCommit(url2);
   TestRenderFrameHost* pending_rfh = contents()->GetPendingMainFrame();
 
   // While it is still pending, simulate opening a new tab with the first tab
   // as its opener.  This will call WebContentsImpl::CreateOpenerRenderViews
   // on the opener to ensure that an RVH exists.
   int opener_routing_id =
       contents()->CreateOpenerRenderViews(pending_rfh->GetSiteInstance());
 
   // We should find the pending RVH and not create a new one.
   EXPECT_EQ(pending_rfh->GetRenderViewHost()->GetRoutingID(),
             opener_routing_id);
 }
 
 // Tests that WebContentsImpl uses the current URL, not the SiteInstance's site,
 // to determine whether a navigation is cross-site.
 TEST_F(WebContentsImplTest, CrossSiteComparesAgainstCurrentPage) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(
       orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
 
   // Open a related contents to a second site.
   scoped_ptr<TestWebContents> contents2(
       TestWebContents::Create(browser_context(), instance1));
   const GURL url2("http://www.yahoo.com");
   contents2->GetController().LoadURL(url2, Referrer(),
                                      ui::PAGE_TRANSITION_TYPED,
                                      std::string());
+  contents2->GetMainFrame()->PrepareForCommit(url2);
   // The first RVH in contents2 isn't live yet, so we shortcut the cross site
   // pending.
   TestRenderFrameHost* rfh2 = contents2->GetMainFrame();
   EXPECT_FALSE(contents2->cross_navigation_pending());
   contents2->TestDidNavigate(rfh2, 2, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2 = contents2->GetSiteInstance();
   EXPECT_NE(instance1, instance2);
   EXPECT_FALSE(contents2->cross_navigation_pending());
 
   // Simulate a link click in first contents to second site.  Doesn't switch
   // SiteInstances, because we don't intercept WebKit navigations.
   contents()->TestDidNavigate(
       orig_rfh, 2, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance3 = contents()->GetSiteInstance();
   EXPECT_EQ(instance1, instance3);
   EXPECT_FALSE(contents()->cross_navigation_pending());
 
   // Navigate to the new site.  Doesn't switch SiteInstancees, because we
   // compare against the current URL, not the SiteInstance's site.
   const GURL url3("http://mail.yahoo.com");
   controller().LoadURL(
       url3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_FALSE(contents()->cross_navigation_pending());
+  contents()->GetMainFrame()->PrepareForCommit(url3);
   contents()->TestDidNavigate(
       orig_rfh, 3, url3, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance4 = contents()->GetSiteInstance();
   EXPECT_EQ(instance1, instance4);
 }
 
 // Test that the onbeforeunload and onunload handlers run when navigating
 // across site boundaries.
 TEST_F(WebContentsImplTest, CrossSiteUnloadHandlers) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use first RenderViewHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Navigate to new site, but simulate an onbeforeunload denial.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
   base::TimeTicks now = base::TimeTicks::Now();
   orig_rfh->OnMessageReceived(
       FrameHostMsg_BeforeUnload_ACK(0, false, now, now));
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Navigate again, but simulate an onbeforeunload approval.
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
   now = base::TimeTicks::Now();
-  orig_rfh->OnMessageReceived(
-      FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  orig_rfh->PrepareForCommit(url2);
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
   EXPECT_TRUE(contents()->cross_navigation_pending());
   TestRenderFrameHost* pending_rfh = contents()->GetPendingMainFrame();
 
   // We won't hear DidNavigate until the onunload handler has finished running.
 
   // DidNavigate from the pending page.
   contents()->TestDidNavigate(
       pending_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   SiteInstance* instance2 = contents()->GetSiteInstance();
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(pending_rfh, contents()->GetMainFrame());
   EXPECT_NE(instance1, instance2);
   EXPECT_TRUE(contents()->GetPendingMainFrame() == NULL);
 }
 
 // Test that during a slow cross-site navigation, the original renderer can
 // navigate to a different URL and have it displayed, canceling the slow
 // navigation.
 TEST_F(WebContentsImplTest, CrossSiteNavigationPreempted) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use first RenderFrameHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Navigate to new site, simulating an onbeforeunload approval.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
-  base::TimeTicks now = base::TimeTicks::Now();
-  orig_rfh->OnMessageReceived(FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
+  orig_rfh->PrepareForCommit(url2);
   EXPECT_TRUE(contents()->cross_navigation_pending());
 
   // Suppose the original renderer navigates before the new one is ready.
   orig_rfh->SendNavigate(2, GURL("http://www.google.com/foo"));
 
   // Verify that the pending navigation is cancelled.
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
   SiteInstance* instance2 = contents()->GetSiteInstance();
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
   EXPECT_EQ(instance1, instance2);
   EXPECT_TRUE(contents()->GetPendingMainFrame() == NULL);
 }
 
 TEST_F(WebContentsImplTest, CrossSiteNavigationBackPreempted) {
   // Start with a web ui page, which gets a new RVH with WebUI bindings.
   const GURL url1("chrome://blah");
   controller().LoadURL(
       url1, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   TestRenderFrameHost* ntp_rfh = contents()->GetMainFrame();
+  ntp_rfh->PrepareForCommit(url1);
   contents()->TestDidNavigate(ntp_rfh, 1, url1, ui::PAGE_TRANSITION_TYPED);
   NavigationEntry* entry1 = controller().GetLastCommittedEntry();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(ntp_rfh, contents()->GetMainFrame());
   EXPECT_EQ(url1, entry1->GetURL());
   EXPECT_EQ(instance1,
             NavigationEntryImpl::FromNavigationEntry(entry1)->site_instance());
   EXPECT_TRUE(ntp_rfh->GetRenderViewHost()->GetEnabledBindings() &
               BINDINGS_POLICY_WEB_UI);
 
   // Navigate to new site.
   const GURL url2("http://www.google.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_TRUE(contents()->cross_navigation_pending());
   TestRenderFrameHost* google_rfh = contents()->GetPendingMainFrame();
 
   // Simulate beforeunload approval.
-  EXPECT_TRUE(ntp_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(ntp_rfh->IsWaitingForBeforeUnloadACK());
   base::TimeTicks now = base::TimeTicks::Now();
-  ntp_rfh->OnMessageReceived(
-      FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
+  ntp_rfh->PrepareForCommit(url2);
 
   // DidNavigate from the pending page.
   contents()->TestDidNavigate(
       google_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   NavigationEntry* entry2 = controller().GetLastCommittedEntry();
   SiteInstance* instance2 = contents()->GetSiteInstance();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(google_rfh, contents()->GetMainFrame());
   EXPECT_NE(instance1, instance2);
   EXPECT_FALSE(contents()->GetPendingMainFrame());
   EXPECT_EQ(url2, entry2->GetURL());
   EXPECT_EQ(instance2,
             NavigationEntryImpl::FromNavigationEntry(entry2)->site_instance());
   EXPECT_FALSE(google_rfh->GetRenderViewHost()->GetEnabledBindings() &
                BINDINGS_POLICY_WEB_UI);
 
   // Navigate to third page on same site.
   const GURL url3("http://news.google.com");
   controller().LoadURL(
       url3, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   EXPECT_FALSE(contents()->cross_navigation_pending());
+  contents()->GetMainFrame()->PrepareForCommit(url3);
   contents()->TestDidNavigate(
       google_rfh, 2, url3, ui::PAGE_TRANSITION_TYPED);
   NavigationEntry* entry3 = controller().GetLastCommittedEntry();
   SiteInstance* instance3 = contents()->GetSiteInstance();
 
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(google_rfh, contents()->GetMainFrame());
   EXPECT_EQ(instance2, instance3);
   EXPECT_FALSE(contents()->GetPendingMainFrame());
   EXPECT_EQ(url3, entry3->GetURL());
   EXPECT_EQ(instance3,
             NavigationEntryImpl::FromNavigationEntry(entry3)->site_instance());
 
   // Go back within the site.
   controller().GoBack();
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(entry2, controller().GetPendingEntry());
 
   // Before that commits, go back again.
   controller().GoBack();
   EXPECT_TRUE(contents()->cross_navigation_pending());
   EXPECT_TRUE(contents()->GetPendingMainFrame());
   EXPECT_EQ(entry1, controller().GetPendingEntry());
 
   // Simulate beforeunload approval.
-  EXPECT_TRUE(google_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(google_rfh->IsWaitingForBeforeUnloadACK());
   now = base::TimeTicks::Now();
+  google_rfh->PrepareForCommit(url2);
   google_rfh->OnMessageReceived(
       FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
 
   // DidNavigate from the first back. This aborts the second back's pending RFH.
   contents()->TestDidNavigate(google_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
 
   // We should commit this page and forget about the second back.
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_FALSE(controller().GetPendingEntry());
   EXPECT_EQ(google_rfh, contents()->GetMainFrame());
@@ skipping 11 matching lines @@
 
 // Test that during a slow cross-site navigation, a sub-frame navigation in the
 // original renderer will not cancel the slow navigation (bug 42029).
 TEST_F(WebContentsImplTest, CrossSiteNavigationNotPreemptedByFrame) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
 
   // Navigate to URL.  First URL should use the original RenderFrameHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Start navigating to new site.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
 
   // Simulate a sub-frame navigation arriving and ensure the RVH is still
   // waiting for a before unload response.
   TestRenderFrameHost* child_rfh = orig_rfh->AppendChild("subframe");
   child_rfh->SendNavigateWithTransition(
       1, GURL("http://google.com/frame"), ui::PAGE_TRANSITION_AUTO_SUBFRAME);
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
 
   // Now simulate the onbeforeunload approval and verify the navigation is
   // not canceled.
-  base::TimeTicks now = base::TimeTicks::Now();
-  orig_rfh->OnMessageReceived(
-      FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  orig_rfh->PrepareForCommit(url2);
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
   EXPECT_TRUE(contents()->cross_navigation_pending());
 }
 
 // Test that a cross-site navigation is not preempted if the previous
 // renderer sends a FrameNavigate message just before being told to stop.
 // We should only preempt the cross-site navigation if the previous renderer
 // has started a new navigation.  See http://crbug.com/79176.
 TEST_F(WebContentsImplTest, CrossSiteNotPreemptedDuringBeforeUnload) {
   // Navigate to NTP URL.
   const GURL url("chrome://blah");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   EXPECT_FALSE(contents()->cross_navigation_pending());
 
   // Navigate to new site, with the beforeunload request in flight.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
   TestRenderFrameHost* pending_rfh = contents()->GetPendingMainFrame();
   EXPECT_TRUE(contents()->cross_navigation_pending());
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
 
   // Suppose the first navigation tries to commit now, with a
   // FrameMsg_Stop in flight.  This should not cancel the pending navigation,
   // but it should act as if the beforeunload ack arrived.
   orig_rfh->SendNavigate(1, GURL("chrome://blah"));
   EXPECT_TRUE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
 
   // The pending navigation should be able to commit successfully.
   contents()->TestDidNavigate(pending_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(pending_rfh, contents()->GetMainFrame());
 }
 
 // Test that a cross-site navigation that doesn't commit after the unload
 // handler doesn't leave the contents in a stuck state.  http://crbug.com/88562
 TEST_F(WebContentsImplTest, CrossSiteNavigationCanceled) {
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   SiteInstance* instance1 = contents()->GetSiteInstance();
 
   // Navigate to URL.  First URL should use original RenderFrameHost.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Navigate to new site, simulating an onbeforeunload approval.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
-  EXPECT_TRUE(orig_rfh->is_waiting_for_beforeunload_ack());
-  base::TimeTicks now = base::TimeTicks::Now();
-  orig_rfh->OnMessageReceived(
-      FrameHostMsg_BeforeUnload_ACK(0, true, now, now));
+  EXPECT_TRUE(orig_rfh->IsWaitingForBeforeUnloadACK());
+  contents()->GetMainFrame()->PrepareForCommit(url2);
   EXPECT_TRUE(contents()->cross_navigation_pending());
 
   // Simulate swap out message when the response arrives.
   orig_rfh->OnSwappedOut();
 
   // Suppose the navigation doesn't get a chance to commit, and the user
   // navigates in the current RFH's SiteInstance.
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
 
   // Verify that the pending navigation is cancelled and the renderer is no
   // longer swapped out.
-  EXPECT_FALSE(orig_rfh->is_waiting_for_beforeunload_ack());
+  EXPECT_FALSE(orig_rfh->IsWaitingForBeforeUnloadACK());
   SiteInstance* instance2 = contents()->GetSiteInstance();
   EXPECT_FALSE(contents()->cross_navigation_pending());
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
   EXPECT_EQ(RenderFrameHostImpl::STATE_DEFAULT, orig_rfh->rfh_state());
   EXPECT_EQ(instance1, instance2);
   EXPECT_TRUE(contents()->GetPendingMainFrame() == NULL);
 }
 
 // Test that NavigationEntries have the correct page state after going
 // forward and back.  Prevents regression for bug 1116137.
@@ skipping 71 matching lines @@
 TEST_F(WebContentsImplTest, NavigationExitsFullscreen) {
   FakeFullscreenDelegate fake_delegate;
   contents()->SetDelegate(&fake_delegate);
   TestRenderFrameHost* orig_rfh = contents()->GetMainFrame();
   TestRenderViewHost* orig_rvh = orig_rfh->GetRenderViewHost();
 
   // Navigate to a site.
   const GURL url("http://www.google.com");
   controller().LoadURL(
       url, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url);
   contents()->TestDidNavigate(orig_rfh, 1, url, ui::PAGE_TRANSITION_TYPED);
   EXPECT_EQ(orig_rfh, contents()->GetMainFrame());
 
   // Toggle fullscreen mode on (as if initiated via IPC from renderer).
   EXPECT_FALSE(orig_rvh->IsFullscreen());
   EXPECT_FALSE(contents()->IsFullscreenForCurrentTab());
   EXPECT_FALSE(fake_delegate.IsFullscreenForTabOrPending(contents()));
   orig_rfh->OnMessageReceived(
       FrameHostMsg_ToggleFullscreen(orig_rfh->GetRoutingID(), true));
   EXPECT_TRUE(orig_rvh->IsFullscreen());
   EXPECT_TRUE(contents()->IsFullscreenForCurrentTab());
   EXPECT_TRUE(fake_delegate.IsFullscreenForTabOrPending(contents()));
 
   // Navigate to a new site.
   const GURL url2("http://www.yahoo.com");
   controller().LoadURL(
       url2, Referrer(), ui::PAGE_TRANSITION_TYPED, std::string());
+  contents()->GetMainFrame()->PrepareForCommit(url2);
   TestRenderFrameHost* const pending_rfh = contents()->GetPendingMainFrame();
   contents()->TestDidNavigate(
       pending_rfh, 1, url2, ui::PAGE_TRANSITION_TYPED);
 
   // Confirm fullscreen has exited.
   EXPECT_FALSE(orig_rvh->IsFullscreen());
   EXPECT_FALSE(contents()->IsFullscreenForCurrentTab());
   EXPECT_FALSE(fake_delegate.IsFullscreenForTabOrPending(contents()));
 
   contents()->SetDelegate(NULL);
@@ skipping 1367 matching lines @@
   // Navigate to a URL in the same site.
   contents->GetController().LoadURL(GURL("http://a.com/2"),
                                     Referrer(),
                                     ui::PAGE_TRANSITION_TYPED,
                                     std::string());
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
   contents->CommitPendingNavigation();
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
 
   // Navigate to a URL in a different site.
-  contents->GetController().LoadURL(GURL("http://b.com"),
+  const GURL kUrl = GURL("http://b.com");
+  contents->GetController().LoadURL(kUrl,
                                     Referrer(),
                                     ui::PAGE_TRANSITION_TYPED,
                                     std::string());
+  contents->GetMainFrame()->PrepareForCommit(kUrl);
   EXPECT_TRUE(contents->cross_navigation_pending());
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
   contents->CommitPendingNavigation();
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
 
   contents.reset();
   EXPECT_EQ(0u, instance->GetRelatedActiveContentsCount());
 }
 
 // Tests that GetRelatedActiveContentsCount tracks BrowsingInstance changes
@@ skipping 10 matching lines @@
 
   // Navigate to a URL.
   contents->NavigateAndCommit(GURL("http://a.com"));
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
 
   // Navigate to a URL with WebUI. This will change BrowsingInstances.
   contents->GetController().LoadURL(GURL(kTestWebUIUrl),
                                     Referrer(),
                                     ui::PAGE_TRANSITION_TYPED,
                                     std::string());
+  contents->GetMainFrame()->PrepareForCommit(GURL(kTestWebUIUrl));
   EXPECT_TRUE(contents->cross_navigation_pending());
   scoped_refptr<SiteInstance> instance_webui(
       contents->GetPendingMainFrame()->GetSiteInstance());
   EXPECT_FALSE(instance->IsRelatedSiteInstance(instance_webui.get()));
 
   // At this point, contents still counts for the old BrowsingInstance.
   EXPECT_EQ(1u, instance->GetRelatedActiveContentsCount());
   EXPECT_EQ(0u, instance_webui->GetRelatedActiveContentsCount());
 
   // Commit and contents counts for the new one.
@@ skipping 230 matching lines @@
 
   // Destroy the remote player. No power save blockers should remain.
   rfh->OnMessageReceived(
       FrameHostMsg_MediaPausedNotification(0, kPlayerRemoteId));
   EXPECT_FALSE(contents()->has_video_power_save_blocker_for_testing());
   EXPECT_FALSE(contents()->has_audio_power_save_blocker_for_testing());
 }
 #endif
 
 }  // namespace content