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

content/browser/renderer_host/media/video_capture_manager_unittest.cc

 // Copyright (c) 2012 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.
 
 // Unit test for VideoCaptureManager.
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
@@ skipping 28 matching lines @@
   MOCK_METHOD2(DevicesEnumerated, void(MediaStreamType,
                                        const StreamDeviceInfoArray&));
   MOCK_METHOD2(Aborted, void(MediaStreamType, int));
 };  // class MockMediaStreamProviderListener
 
 // Needed as an input argument to StartCaptureForClient().
 class MockFrameObserver : public VideoCaptureControllerEventHandler {
  public:
   MOCK_METHOD1(OnError, void(VideoCaptureControllerID id));
 
-  virtual void OnBufferCreated(VideoCaptureControllerID id,
-                               base::SharedMemoryHandle handle,
-                               int length, int buffer_id) override {}
-  virtual void OnBufferDestroyed(VideoCaptureControllerID id,
-                               int buffer_id) override {}
-  virtual void OnBufferReady(
+  void OnBufferCreated(VideoCaptureControllerID id,
+                       base::SharedMemoryHandle handle,
+                       int length, int buffer_id) override {}
+  void OnBufferDestroyed(VideoCaptureControllerID id, int buffer_id) override {}
+  void OnBufferReady(
       VideoCaptureControllerID id,
       int buffer_id,
       const gfx::Size& coded_size,
       const gfx::Rect& visible_rect,
       const base::TimeTicks& timestamp,
       scoped_ptr<base::DictionaryValue> metadata) override {}
-  virtual void OnMailboxBufferReady(
+  void OnMailboxBufferReady(
       VideoCaptureControllerID id,
       int buffer_id,
       const gpu::MailboxHolder& mailbox_holder,
       const gfx::Size& packed_frame_size,
       const base::TimeTicks& timestamp,
       scoped_ptr<base::DictionaryValue> metadata) override {}
-  virtual void OnEnded(VideoCaptureControllerID id) override {}
+  void OnEnded(VideoCaptureControllerID id) override {}
 
   void OnGotControllerCallback(VideoCaptureControllerID) {}
 };
 
 // Test class
 class VideoCaptureManagerTest : public testing::Test {
  public:
   VideoCaptureManagerTest() : next_client_id_(1) {}
   ~VideoCaptureManagerTest() override {}
 
@@ skipping 435 matching lines @@
 
   // Wait to check callbacks before removing the listener
   message_loop_->RunUntilIdle();
   vcm_->Unregister();
 }
 
 // TODO(mcasas): Add a test to check consolidation of the supported formats
 // provided by the device when http://crbug.com/323913 is closed.
 
 }  // namespace content