RemoveDeletionObserver  131 content/common/gpu/client/command_buffer_proxy_impl.h   void RemoveDeletionObserver(DeletionObserver* observer);
RemoveDeletionObserver   46 content/common/gpu/client/gpu_video_decode_accelerator_host.cc     impl_->RemoveDeletionObserver(this);
RemoveDeletionObserver   39 content/common/gpu/client/gpu_video_encode_accelerator_host.cc     impl_->RemoveDeletionObserver(this);