Introduce abstractions to allow embedders to test RenderViewHost

chrome/browser/tab_contents/thumbnail_generator_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/basictypes.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/history/top_sites.h"
 #include "chrome/browser/tab_contents/thumbnail_generator.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/renderer_host/mock_render_process_host.h"
-#include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
+#include "content/test/test_renderer_host.h"
 #include "skia/ext/platform_canvas.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkColorPriv.h"
 #include "ui/gfx/canvas_skia.h"
 #include "ui/gfx/surface/transport_dib.h"
 
 using content::WebContents;
 
 typedef testing::Test ThumbnailGeneratorTest;
 
@@ skipping 190 matching lines @@
   good_score.good_clipping = true;
   good_score.boring_score = 0.0;
   good_score.load_completed = true;
   top_sites->AddKnownURL(kGoodURL, good_score);
 
   // Should be false, as the existing thumbnail is good enough (i.e. don't
   // need to replace the existing thumbnail which is new and good).
   EXPECT_FALSE(ThumbnailGenerator::ShouldUpdateThumbnail(
       &profile, top_sites.get(), kGoodURL));
 }