Add abstractions that let embedders drive tests of WebContents.

content/browser/tab_contents/tab_contents_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/logging.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/mock_content_browser_client.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/site_instance_impl.h"
@@ skipping 261 matching lines @@
         old_client_(NULL),
         old_browser_client_(NULL) {
   }
 
   virtual void SetUp() {
     // These tests treat tabcontentstest as a privileged WebUI scheme.
     // We must register it similarly to kChromeUIScheme.
     url_util::AddStandardScheme("tabcontentstest");
 
     old_client_ = content::GetContentClient();
+    old_browser_client_ = content::GetContentClient()->browser();
     content::SetContentClient(&client_);
-    old_browser_client_ = content::GetContentClient()->browser();
     content::GetContentClient()->set_browser(&browser_client_);
-    RenderViewHostTestHarness::SetUp();
+    RenderViewHostImplTestHarness::SetUp();
   }
 
   virtual void TearDown() {
     content::GetContentClient()->set_browser(old_browser_client_);
     content::SetContentClient(old_client_);
-    RenderViewHostTestHarness::TearDown();
+    RenderViewHostImplTestHarness::TearDown();
   }
 
  private:
   TabContentsTestClient client_;
   TabContentsTestBrowserClient browser_client_;
   content::TestBrowserThread ui_thread_;
   content::ContentClient* old_client_;
   content::ContentBrowserClient* old_browser_client_;
 };
 
@@ skipping 1552 matching lines @@
   TestInterstitialPage* interstitial =
       new TestInterstitialPage(contents(), true, url2, &state, &deleted);
   TestInterstitialPageStateGuard state_guard(interstitial);
   interstitial->Show();
   interstitial->TestDidNavigate(1, url2);
   EXPECT_TRUE(interstitial->is_showing());
   EXPECT_EQ(2, controller().GetEntryCount());
 
   // Create another NavigationController.
   GURL url3("http://foo2");
-  scoped_ptr<TestTabContents> other_contents(CreateTestTabContents());
+  scoped_ptr<TestTabContents> other_contents(
+      static_cast<TestTabContents*>(CreateTestWebContents()));
   NavigationControllerImpl& other_controller =
       other_contents->GetControllerImpl();
   other_contents->NavigateAndCommit(url3);
   other_contents->ExpectSetHistoryLengthAndPrune(
       NavigationEntryImpl::FromNavigationEntry(
           other_controller.GetEntryAtIndex(0))->site_instance(), 1,
       other_controller.GetEntryAtIndex(0)->GetPageID());
   other_controller.CopyStateFromAndPrune(&controller());
 
   // The merged controller should only have two entries: url1 and url2.
   ASSERT_EQ(2, other_controller.GetEntryCount());
   EXPECT_EQ(1, other_controller.GetCurrentEntryIndex());
   EXPECT_EQ(url1, other_controller.GetEntryAtIndex(0)->GetURL());
   EXPECT_EQ(url3, other_controller.GetEntryAtIndex(1)->GetURL());
 
   // And the merged controller shouldn't be showing an interstitial.
   EXPECT_FALSE(other_contents->ShowingInterstitialPage());
 }
 
 // Makes sure that CopyStateFromAndPrune does the right thing if the object
 // CopyStateFromAndPrune is invoked on is showing an interstitial.
 TEST_F(TabContentsTest, CopyStateFromAndPruneTargetInterstitial) {
   // Navigate to a page.
   GURL url1("http://www.google.com");
   contents()->NavigateAndCommit(url1);
 
   // Create another NavigationController.
-  scoped_ptr<TestTabContents> other_contents(CreateTestTabContents());
+  scoped_ptr<TestTabContents> other_contents(
+      static_cast<TestTabContents*>(CreateTestWebContents()));
   NavigationControllerImpl& other_controller =
       other_contents->GetControllerImpl();
 
   // Navigate it to url2.
   GURL url2("http://foo2");
   other_contents->NavigateAndCommit(url2);
 
   // Show an interstitial.
   TestInterstitialPage::InterstitialState state =
       TestInterstitialPage::UNDECIDED;
@@ skipping 22 matching lines @@
   // It should have a transient entry.
   EXPECT_TRUE(other_controller.GetTransientEntry());
 
   // And the interstitial should be showing.
   EXPECT_TRUE(other_contents->ShowingInterstitialPage());
 
   // And the interstitial should do a reload on don't proceed.
   EXPECT_TRUE(static_cast<InterstitialPageImpl*>(
       other_contents->GetInterstitialPage())->reload_on_dont_proceed());
 }