getUserMeida: report device starting states

media/capture/video/fake_video_capture_device.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/capture/video/fake_video_capture_device.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <utility>
 
@@ skipping 510 matching lines @@
 OwnBufferFrameDeliverer::~OwnBufferFrameDeliverer() = default;
 
 void OwnBufferFrameDeliverer::Initialize(
     VideoPixelFormat pixel_format,
     std::unique_ptr<VideoCaptureDevice::Client> client,
     const FakeDeviceState* device_state) {
   client_ = std::move(client);
   device_state_ = device_state;
   buffer_.reset(new uint8_t[VideoFrame::AllocationSize(
       pixel_format, device_state_->format.frame_size)]);
+  client_->OnStarted();
 }
 
 void OwnBufferFrameDeliverer::Uninitialize() {
   client_.reset();
   device_state_ = nullptr;
   buffer_.reset();
 }
 
 void OwnBufferFrameDeliverer::PaintAndDeliverNextFrame(
     base::TimeDelta timestamp_to_paint) {
@@ skipping 13 matching lines @@
     : FrameDeliverer(std::move(frame_painter)) {}
 
 ClientBufferFrameDeliverer::~ClientBufferFrameDeliverer() = default;
 
 void ClientBufferFrameDeliverer::Initialize(
     VideoPixelFormat,
     std::unique_ptr<VideoCaptureDevice::Client> client,
     const FakeDeviceState* device_state) {
   client_ = std::move(client);
   device_state_ = device_state;
+  client_->OnStarted();
 }
 
 void ClientBufferFrameDeliverer::Uninitialize() {
   client_.reset();
   device_state_ = nullptr;
 }
 
 void ClientBufferFrameDeliverer::PaintAndDeliverNextFrame(
     base::TimeDelta timestamp_to_paint) {
   if (client_ == nullptr)
@@ skipping 56 matching lines @@
     int session_id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (session_id != current_session_id_)
     return;
 
   frame_deliverer_->PaintAndDeliverNextFrame(elapsed_time_);
   BeepAndScheduleNextCapture(expected_execution_time);
 }
 
 }  // namespace media