Most Visited: remove over-eager optimization that causes a lot of blank thumbnails

chrome/browser/history/top_sites_unittest.cc

 // Copyright (c) 2011 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/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/path_service.h"
@@ skipping 529 matching lines @@
   // Set the thumbnail.
   EXPECT_TRUE(top_sites()->SetPageThumbnail(url, &thumbnail, medium_score));
 
   // Make sure the thumbnail was actually set.
   scoped_refptr<RefCountedBytes> result;
   EXPECT_TRUE(top_sites()->GetPageThumbnail(url, &result));
   EXPECT_TRUE(ThumbnailEqualsBytes(thumbnail, result.get()));
 
   // Reset the thumbnails and make sure we don't get it back.
   SetTopSites(MostVisitedURLList());
+  RefreshTopSitesAndRecreate();
   EXPECT_FALSE(top_sites()->GetPageThumbnail(url, &result));
 }
 
 // Tests GetPageThumbnail.
 TEST_F(TopSitesTest, GetPageThumbnail) {
   MostVisitedURLList url_list;
   MostVisitedURL url1;
   url1.url = GURL("http://asdf.com");
   url1.redirects.push_back(url1.url);
   url_list.push_back(url1);
@@ skipping 828 matching lines @@
   ui_test_utils::WindowedNotificationObserver observer(
       chrome::NOTIFICATION_TOP_SITES_LOADED,
       content::Source<Profile>(profile()));
   profile()->CreateTopSites();
   profile()->GetHistoryService(Profile::EXPLICIT_ACCESS)->UnloadBackend();
   profile()->BlockUntilHistoryProcessesPendingRequests();
   observer.Wait();
 }
 
 }  // namespace history