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

media/video/capture/android/video_capture_device_android.h

 // Copyright (c) 2013 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 MEDIA_VIDEO_CAPTURE_ANDROID_VIDEO_CAPTURE_DEVICE_ANDROID_H_
 #define MEDIA_VIDEO_CAPTURE_ANDROID_VIDEO_CAPTURE_DEVICE_ANDROID_H_
 
 #include <jni.h>
 #include <string>
 
@@ skipping 19 matching lines @@
   enum AndroidImageFormat {
     // Android graphics ImageFormat mapping, see reference in:
     // http://developer.android.com/reference/android/graphics/ImageFormat.html
     ANDROID_IMAGE_FORMAT_NV21 = 17,
     ANDROID_IMAGE_FORMAT_YUV_420_888 = 35,
     ANDROID_IMAGE_FORMAT_YV12 = 842094169,
     ANDROID_IMAGE_FORMAT_UNKNOWN = 0,
   };
 
   explicit VideoCaptureDeviceAndroid(const Name& device_name);
-  virtual ~VideoCaptureDeviceAndroid();
+  ~VideoCaptureDeviceAndroid() override;
 
   static VideoCaptureDevice* Create(const Name& device_name);
   static bool RegisterVideoCaptureDevice(JNIEnv* env);
 
   // Registers the Java VideoCaptureDevice pointer, used by the rest of the
   // methods of the class to operate the Java capture code. This method must be
   // called after the class constructor and before AllocateAndStart().
   bool Init();
 
   // VideoCaptureDevice implementation.
-  virtual void AllocateAndStart(const VideoCaptureParams& params,
-                                scoped_ptr<Client> client) override;
-  virtual void StopAndDeAllocate() override;
+  void AllocateAndStart(const VideoCaptureParams& params,
+                        scoped_ptr<Client> client) override;
+  void StopAndDeAllocate() override;
 
   // Implement org.chromium.media.VideoCapture.nativeOnFrameAvailable.
   void OnFrameAvailable(
       JNIEnv* env,
       jobject obj,
       jbyteArray data,
       jint length,
       jint rotation);
 
   // Implement org.chromium.media.VideoCapture.nativeOnError.
@@ skipping 23 matching lines @@
 
   // Java VideoCaptureAndroid instance.
   base::android::ScopedJavaLocalRef<jobject> j_capture_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceAndroid);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_ANDROID_VIDEO_CAPTURE_DEVICE_ANDROID_H_