getUserMeida: report device starting states

media/capture/video/fake_video_capture_device.cc

Index: media/capture/video/fake_video_capture_device.cc
diff --git a/media/capture/video/fake_video_capture_device.cc b/media/capture/video/fake_video_capture_device.cc
index 3bbd18486aa6bbab13d1d709dc2220e1a17f8d3b..37730cc30bca63f3f7cf5b54f5c10c9ca2e8db7a 100644
--- a/media/capture/video/fake_video_capture_device.cc
+++ b/media/capture/video/fake_video_capture_device.cc
@@ -97,7 +97,7 @@ class PacmanFramePainter {
 class FrameDeliverer {
  public:
   FrameDeliverer(std::unique_ptr<PacmanFramePainter> frame_painter)
-      : frame_painter_(std::move(frame_painter)) {}
+      : frame_painter_(std::move(frame_painter)), capture_(false) {}
   virtual ~FrameDeliverer() {}
   virtual void Initialize(VideoPixelFormat pixel_format,
                           std::unique_ptr<VideoCaptureDevice::Client> client,
@@ -115,6 +115,7 @@ class FrameDeliverer {
   const std::unique_ptr<PacmanFramePainter> frame_painter_;
   const FakeDeviceState* device_state_ = nullptr;
   std::unique_ptr<VideoCaptureDevice::Client> client_;
+  bool capture_;
 
  private:
   base::TimeTicks first_ref_time_;
@@ -528,9 +529,12 @@ void OwnBufferFrameDeliverer::Initialize(
   device_state_ = device_state;
   buffer_.reset(new uint8_t[VideoFrame::AllocationSize(
       pixel_format, device_state_->format.frame_size)]);
+  client_->OnStarted();
+  capture_ = true;
 }
 
 void OwnBufferFrameDeliverer::Uninitialize() {
+  capture_ = false;
   client_.reset();
   device_state_ = nullptr;
   buffer_.reset();
@@ -538,7 +542,7 @@ void OwnBufferFrameDeliverer::Uninitialize() {
 
 void OwnBufferFrameDeliverer::PaintAndDeliverNextFrame(
     base::TimeDelta timestamp_to_paint) {
-  if (!client_)
+  if (!client_ || !capture_)
     return;
   const size_t frame_size = device_state_->format.ImageAllocationSize();
   memset(buffer_.get(), 0, frame_size);
@@ -561,6 +565,7 @@ void ClientBufferFrameDeliverer::Initialize(
     const FakeDeviceState* device_state) {
   client_ = std::move(client);
   device_state_ = device_state;
+  client_->OnStarted();
 }
 
 void ClientBufferFrameDeliverer::Uninitialize() {