Standardize usage of virtual/override/final in content/renderer/

content/renderer/pepper/pepper_video_decoder_host.h

Index: content/renderer/pepper/pepper_video_decoder_host.h
diff --git a/content/renderer/pepper/pepper_video_decoder_host.h b/content/renderer/pepper/pepper_video_decoder_host.h
index e7f9ea09640d85a824eff64cf3df1916826a7d96..fab65d891adb0bab7735fef1c507feeb1bc9d5ad 100644
--- a/content/renderer/pepper/pepper_video_decoder_host.h
+++ b/content/renderer/pepper/pepper_video_decoder_host.h
@@ -37,7 +37,7 @@ class CONTENT_EXPORT PepperVideoDecoderHost
   PepperVideoDecoderHost(RendererPpapiHost* host,
                          PP_Instance instance,
                          PP_Resource resource);
-  virtual ~PepperVideoDecoderHost();
+  ~PepperVideoDecoderHost() override;
 
  private:
   struct PendingDecode {
@@ -52,20 +52,20 @@ class CONTENT_EXPORT PepperVideoDecoderHost
   friend class VideoDecoderShim;
 
   // ResourceHost implementation.
-  virtual int32_t OnResourceMessageReceived(
+  int32_t OnResourceMessageReceived(
       const IPC::Message& msg,
       ppapi::host::HostMessageContext* context) override;
 
   // media::VideoDecodeAccelerator::Client implementation.
-  virtual void ProvidePictureBuffers(uint32 requested_num_of_buffers,
-                                     const gfx::Size& dimensions,
-                                     uint32 texture_target) override;
-  virtual void DismissPictureBuffer(int32 picture_buffer_id) override;
-  virtual void PictureReady(const media::Picture& picture) override;
-  virtual void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) override;
-  virtual void NotifyFlushDone() override;
-  virtual void NotifyResetDone() override;
-  virtual void NotifyError(media::VideoDecodeAccelerator::Error error) override;
+  void ProvidePictureBuffers(uint32 requested_num_of_buffers,
+                             const gfx::Size& dimensions,
+                             uint32 texture_target) override;
+  void DismissPictureBuffer(int32 picture_buffer_id) override;
+  void PictureReady(const media::Picture& picture) override;
+  void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) override;
+  void NotifyFlushDone() override;
+  void NotifyResetDone() override;
+  void NotifyError(media::VideoDecodeAccelerator::Error error) override;
 
   int32_t OnHostMsgInitialize(ppapi::host::HostMessageContext* context,
                               const ppapi::HostResource& graphics_context,