getUserMeida: report device starting states

media/capture/content/thread_safe_capture_oracle.cc

 // Copyright 2014 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/content/thread_safe_capture_oracle.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
@@ skipping 180 matching lines @@
 }
 
 void ThreadSafeCaptureOracle::ReportError(
     const tracked_objects::Location& from_here,
     const std::string& reason) {
   base::AutoLock guard(lock_);
   if (client_)
     client_->OnError(from_here, reason);
 }
 
+void ThreadSafeCaptureOracle::ReportStarted() {
+  base::AutoLock guard(lock_);
+  if (client_)
+    client_->OnStarted();
+}
+
 void ThreadSafeCaptureOracle::DidCaptureFrame(
     int frame_number,
     VideoCaptureDevice::Client::Buffer buffer,
     base::TimeTicks capture_begin_time,
     base::TimeDelta estimated_frame_duration,
     scoped_refptr<VideoFrame> frame,
     base::TimeTicks reference_time,
     bool success) {
   TRACE_EVENT_ASYNC_END2("gpu.capture", "Capture", buffer.id(), "success",
                          success, "timestamp",
@@ skipping 31 matching lines @@
 }
 
 void ThreadSafeCaptureOracle::OnConsumerReportingUtilization(
     int frame_number,
     double utilization) {
   base::AutoLock guard(lock_);
   oracle_.RecordConsumerFeedback(frame_number, utilization);
 }
 
 }  // namespace media