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

content/renderer/media/webrtc_identity_service_unittest.cc

Index: content/renderer/media/webrtc_identity_service_unittest.cc
diff --git a/content/renderer/media/webrtc_identity_service_unittest.cc b/content/renderer/media/webrtc_identity_service_unittest.cc
index b706258184683f01adbce0d0ca7ccd0a8a216ba3..38059714f21d0d0004db7644ee2f3f5d013bb6f7 100644
--- a/content/renderer/media/webrtc_identity_service_unittest.cc
+++ b/content/renderer/media/webrtc_identity_service_unittest.cc
@@ -22,13 +22,13 @@ static const int FAKE_ERROR = 100;
 
 class WebRTCIdentityServiceForTest : public WebRTCIdentityService {
  public:
-  virtual bool Send(IPC::Message* message) override {
+  bool Send(IPC::Message* message) override {
     messages_.push_back(*message);
     delete message;
     return true;
   }
 
-  virtual bool OnControlMessageReceived(const IPC::Message& message) override {
+  bool OnControlMessageReceived(const IPC::Message& message) override {
     return WebRTCIdentityService::OnControlMessageReceived(message);
   }