Replacing the OVERRIDE with override and FINAL with final in ppapi

ppapi/proxy/proxy_channel.h

Index: ppapi/proxy/proxy_channel.h
diff --git a/ppapi/proxy/proxy_channel.h b/ppapi/proxy/proxy_channel.h
index 6c9f1f67f749632f9b06af880ba67cfc6743e68a..873bc09f0f989401449fbcb33b774f6db92d650c 100644
--- a/ppapi/proxy/proxy_channel.h
+++ b/ppapi/proxy/proxy_channel.h
@@ -70,10 +70,10 @@ class PPAPI_PROXY_EXPORT ProxyChannel
       bool should_close_source);
 
   // IPC::Sender implementation.
-  virtual bool Send(IPC::Message* msg) OVERRIDE;
+  virtual bool Send(IPC::Message* msg) override;
 
   // IPC::Listener implementation.
-  virtual void OnChannelError() OVERRIDE;
+  virtual void OnChannelError() override;
 
   // Will be NULL in some unit tests and if the remote side has crashed.
   IPC::SyncChannel* channel() const {