Add abstractions that let embedders drive tests of WebContents.

content/browser/tab_contents/render_view_host_manager_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/utf_string_conversions.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/mock_content_browser_client.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/browser/tab_contents/navigation_controller_impl.h"
@@ skipping 114 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostManagerTestBrowserClient);
 };
 
 }  // namespace
 
 class RenderViewHostManagerTest
     : public RenderViewHostImplTestHarness {
  public:
   virtual void SetUp() OVERRIDE {
-    RenderViewHostTestHarness::SetUp();
+    RenderViewHostImplTestHarness::SetUp();
     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_);
     url_util::AddStandardScheme(chrome::kChromeUIScheme);
   }
 
   virtual void TearDown() OVERRIDE {
-    RenderViewHostTestHarness::TearDown();
+    RenderViewHostImplTestHarness::TearDown();
     content::GetContentClient()->set_browser(old_browser_client_);
     content::SetContentClient(old_client_);
   }
 
   void set_should_create_webui(bool should_create_webui) {
     browser_client_.set_should_create_webui(should_create_webui);
   }
 
   void NavigateActiveAndCommit(const GURL& url) {
     // Note: we navigate the active RenderViewHost because previous navigations
@@ skipping 607 matching lines @@
 
   // We should be able to navigate forward.
   contents()->GetController().GoForward();
   contents()->ProceedWithCrossSiteNavigation();
   const NavigationEntry* entry2 = contents()->GetController().GetPendingEntry();
   rvh2->SendNavigate(entry2->GetPageID(), entry2->GetURL());
   EXPECT_EQ(rvh2, rvh());
   EXPECT_FALSE(rvh2->is_swapped_out());
   EXPECT_TRUE(rvh1->is_swapped_out());
 }