Remove cancelMediaDevicesRequest dead code.

third_party/WebKit/Source/modules/mediastream/UserMediaController.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
     USING_GARBAGE_COLLECTED_MIXIN(UserMediaController);
 public:
     static UserMediaController* create(std::unique_ptr<UserMediaClient>);
 
     DECLARE_VIRTUAL_TRACE();
 
     UserMediaClient* client() const { return m_client.get(); }
 
     void requestUserMedia(UserMediaRequest*);
     void cancelUserMediaRequest(UserMediaRequest*);
-
     void requestMediaDevices(MediaDevicesRequest*);
-    void cancelMediaDevicesRequest(MediaDevicesRequest*);
-
     void requestSources(MediaStreamTrackSourcesRequest*);
-
     void setMediaDeviceChangeObserver(MediaDevices*);
 
     static const char* supplementName();
     static UserMediaController* from(LocalFrame* frame) { return static_cast<UserMediaController*>(Supplement<LocalFrame>::from(frame, supplementName())); }
 
 private:
     explicit UserMediaController(std::unique_ptr<UserMediaClient>);
 
     std::unique_ptr<UserMediaClient> m_client;
 };
 
 inline void UserMediaController::requestUserMedia(UserMediaRequest* request)
 {
     m_client->requestUserMedia(request);
 }
 
 inline void UserMediaController::cancelUserMediaRequest(UserMediaRequest* request)
 {
     m_client->cancelUserMediaRequest(request);
 }
 
 inline void UserMediaController::requestMediaDevices(MediaDevicesRequest* request)
 {
     m_client->requestMediaDevices(request);
 }
 
-inline void UserMediaController::cancelMediaDevicesRequest(MediaDevicesRequest* request)
-{
-    m_client->cancelMediaDevicesRequest(request);
-}
-
 inline void UserMediaController::requestSources(MediaStreamTrackSourcesRequest* request)
 {
     m_client->requestSources(request);
 }
 
 inline void UserMediaController::setMediaDeviceChangeObserver(MediaDevices* observer)
 {
     m_client->setMediaDeviceChangeObserver(observer);
 }
 
 } // namespace blink
 
 #endif // UserMediaController_h