FBTF: Move virtual methods to implementation files.

chrome/browser/history/top_sites_database.h

 // Copyright (c) 2010 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_HISTORY_TOP_SITES_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_TOP_SITES_DATABASE_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 48 matching lines @@
   virtual bool GetPageThumbnail(const GURL& url,
                                 Images* thumbnail) = 0;
 
   // Remove the record for this URL. Returns true iff removed successfully.
   virtual bool RemoveURL(const MostVisitedURL& url) = 0;
 };
 
 class TopSitesDatabaseImpl : public TopSitesDatabase {
  public:
   TopSitesDatabaseImpl();
-  ~TopSitesDatabaseImpl() {}
+  virtual ~TopSitesDatabaseImpl();
 
   // Must be called after creation but before any other methods are called.
   // Returns true on success. If false, no other functions should be called.
   virtual bool Init(const FilePath& db_name);
 
   // Thumbnails ----------------------------------------------------------------
 
   // Returns a list of all URLs currently in the table.
   // WARNING: clears both input arguments.
   virtual void GetPageThumbnails(MostVisitedURLList* urls,
@@ skipping 46 matching lines @@
 
   // Decodes redirects from a string and sets them for the url.
   static void SetRedirects(const std::string& redirects, MostVisitedURL* url);
 
   sql::Connection db_;
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_TOP_SITES_DATABASE_H_