Add OVERRIDE to chrome/browser/.

chrome/browser/history/in_memory_database.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_IN_MEMORY_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_IN_MEMORY_DATABASE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "chrome/browser/history/url_database.h"
@@ skipping 15 matching lines @@
   bool InitFromScratch();
 
   // Initializes the database by directly slurping the data from the given
   // file. Conceptually, the InMemoryHistoryBackend should do the populating
   // after this object does some common initialization, but that would be
   // much slower.
   bool InitFromDisk(const FilePath& history_name);
 
  protected:
   // Implemented for URLDatabase.
-  virtual sql::Connection& GetDB();
+  virtual sql::Connection& GetDB() OVERRIDE;
 
  private:
   // Initializes the database connection, this is the shared code between
   // InitFromScratch() and InitFromDisk() above. Returns true on success.
   bool InitDB();
 
   sql::Connection db_;
 
   DISALLOW_COPY_AND_ASSIGN(InMemoryDatabase);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_IN_MEMORY_DATABASE_H_