Update {virtual,override} to follow C++11 style in content.

content/browser/indexed_db/mock_indexed_db_factory.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 CONTENT_BROWSER_INDEXED_DB_MOCK_INDEXED_DB_FACTORY_H_
 #define CONTENT_BROWSER_INDEXED_DB_MOCK_INDEXED_DB_FACTORY_H_
 
 #include <string>
 
 #include "content/browser/indexed_db/indexed_db_factory.h"
@@ skipping 23 matching lines @@
                     net::URLRequestContext* request_context,
                     scoped_refptr<IndexedDBCallbacks> callbacks,
                     const GURL& origin_url,
                     const base::FilePath& data_directory));
   MOCK_METHOD1(HandleBackingStoreFailure, void(const GURL& origin_url));
   MOCK_METHOD2(HandleBackingStoreCorruption,
                void(const GURL& origin_url,
                     const IndexedDBDatabaseError& error));
   // The Android NDK implements a subset of STL, and the gtest templates can't
   // deal with std::pair's. This means we can't use GoogleMock for this method
-  virtual OriginDBs GetOpenDatabasesForOrigin(
-      const GURL& origin_url) const override;
+  OriginDBs GetOpenDatabasesForOrigin(const GURL& origin_url) const override;
   MOCK_METHOD1(ForceClose, void(const GURL& origin_url));
   MOCK_METHOD0(ContextDestroyed, void());
   MOCK_METHOD1(DatabaseDeleted,
                void(const IndexedDBDatabase::Identifier& identifier));
   MOCK_CONST_METHOD1(GetConnectionCount, size_t(const GURL& origin_url));
 
   MOCK_METHOD2(ReportOutstandingBlobs,
                void(const GURL& origin_url, bool blobs_outstanding));
 
  protected:
@@ skipping 20 matching lines @@
                    bool first_time,
                    leveldb::Status* s));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockIndexedDBFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_MOCK_INDEXED_DB_FACTORY_H_