Add more video capture log messages to WebRTC log

content/browser/renderer_host/media/video_capture_controller.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 "content/browser/renderer_host/media/video_capture_controller.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
@@ skipping 429 matching lines @@
                                frame_info->coded_size.height());
     double frame_rate = 0.0f;
     if (video_capture_format_) {
       media::VideoFrameMetadata metadata;
       metadata.MergeInternalValuesFrom(*frame_info->metadata);
       if (!metadata.GetDouble(VideoFrameMetadata::FRAME_RATE, &frame_rate)) {
         frame_rate = video_capture_format_->frame_rate;
       }
     }
     UMA_HISTOGRAM_COUNTS("Media.VideoCapture.FrameRate", frame_rate);
+    OnLog("First frame received at VideoCaptureController");
     has_received_frames_ = true;
   }
 }
 
 void VideoCaptureController::OnBufferRetired(int buffer_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   auto buffer_context_iter = FindUnretiredBufferContextFromBufferId(buffer_id);
   DCHECK(buffer_context_iter != buffer_contexts_.end());
 
@@ skipping 17 matching lines @@
   MediaStreamManager::SendMessageToNativeLog("Video capture: " + message);
 }
 
 void VideoCaptureController::OnStarted() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   state_ = VIDEO_CAPTURE_STATE_STARTED;
   PerformForClientsWithOpenSession(base::Bind(&CallOnStarted));
 }
 
 void VideoCaptureController::OnStartedUsingGpuDecode() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  OnLog("StartedUsingGpuDecode");
   PerformForClientsWithOpenSession(base::Bind(&CallOnStartedUsingGpuDecode));
 }
 
 void VideoCaptureController::OnDeviceLaunched(
     std::unique_ptr<LaunchedVideoCaptureDevice> device) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   launched_device_ = std::move(device);
   for (auto& entry : buffer_contexts_)
     entry.set_consumer_feedback_observer(launched_device_.get());
   if (device_launch_observer_) {
@@ skipping 168 matching lines @@
     EventHandlerAction action) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   for (const auto& client : controller_clients_) {
     if (client->session_closed)
       continue;
     action.Run(client->event_handler, client->controller_id);
   }
 }
 
 }  // namespace content