[Mojo Video Capture] Add test coverage for accelerated jpeg decoding

content/browser/renderer_host/media/video_capture_controller.h

Index: content/browser/renderer_host/media/video_capture_controller.h
diff --git a/content/browser/renderer_host/media/video_capture_controller.h b/content/browser/renderer_host/media/video_capture_controller.h
index 634fb169316dadc1adf9aab789e803b493819c11..6e04d5a526184156429764e5a3d4ea7d96905f4d 100644
--- a/content/browser/renderer_host/media/video_capture_controller.h
+++ b/content/browser/renderer_host/media/video_capture_controller.h
@@ -102,6 +102,7 @@ class CONTENT_EXPORT VideoCaptureController : public media::VideoFrameReceiver {
   void OnError() override;
   void OnLog(const std::string& message) override;
   void OnStarted() override;
+  void OnStartedUsingGpuDecode() override;
 
  private:
   struct ControllerClient;
@@ -172,6 +173,14 @@ class CONTENT_EXPORT VideoCaptureController : public media::VideoFrameReceiver {
   void ReleaseBufferContext(
       const std::vector<BufferContext>::iterator& buffer_state_iter);
 
+  using EventHandlerAction =
+      base::Callback<void(VideoCaptureControllerEventHandler* client,
+                          VideoCaptureControllerID id)>;
+  void PerformForClientsWithOpenSession(EventHandlerAction action);
+
+  template <typename Action>
+  void PerformForClientsWithOpenSessionT();

[mcasas, 2017/03/08 22:04:51]

If we use Bind() to call PerformForClientsWithOpenSession()
as we do now, then this template function is not needed,
remove it.

[chfremer, 2017/03/08 22:21:22]

Oops. Thanks for catching this.
Done.

+
   std::unique_ptr<media::VideoFrameConsumerFeedbackObserver>
       consumer_feedback_observer_;