[Thumbnails] Injecting TopSites into ThumbnailListSource.

chrome/browser/thumbnails/thumbnail_list_source.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_
 #define CHROME_BROWSER_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "components/history/core/browser/history_types.h"
 #include "content/public/browser/url_data_source.h"
 
 class Profile;
 
 namespace base {
 class RefCountedMemory;
-}
+}  // namespace base

[Lei Zhang, 2015/03/19 22:22:07]

There's no need to comment when the namespace is this small.

[huangs, 2015/03/20 00:10:25]

Done.

+
+namespace history {
+class TopSites;
+}  // namespace history
 
 namespace thumbnails {
 class ThumbnailService;
-}
+}  // namespace thumbnails
 
 // ThumbnailListSource renders a webpage to list all thumbnails stored in
 // TopSites, along with all associated URLs. The thumbnail images are embedded
 // into the HTML via Base64, so we can easily produce a dump of TopSites and
 // the thumbnails it stores.
 class ThumbnailListSource : public content::URLDataSource {
  public:
   explicit ThumbnailListSource(Profile* profile);
 
   // content::URLDataSource implementation.
@@ skipping 12 matching lines @@
  private:
   ~ThumbnailListSource() override;
 
   void OnMostVisitedURLsAvailable(
     const content::URLDataSource::GotDataCallback& callback,
     const history::MostVisitedURLList& mvurl_list);
 
   // ThumbnailService.
   scoped_refptr<thumbnails::ThumbnailService> thumbnail_service_;
 
-  // Only used when servicing requests on the UI thread.
-  Profile* const profile_;
+  scoped_refptr<history::TopSites> top_sites_;
 
   // For callbacks may be run after destruction.
   base::WeakPtrFactory<ThumbnailListSource> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ThumbnailListSource);
 };
 
 
 #endif  // CHROME_BROWSER_THUMBNAILS_THUMBNAIL_LIST_SOURCE_H_