Tab/Desktop Capture: Use requests instead of timer-based refreshing.

content/browser/media/capture/desktop_capture_device_aura.cc

 // Copyright 2013 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/media/capture/desktop_capture_device_aura.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/timer/timer.h"
@@ skipping 39 matching lines @@
       new DesktopCaptureDeviceAura(source));
 }
 
 void DesktopCaptureDeviceAura::AllocateAndStart(
     const media::VideoCaptureParams& params,
     scoped_ptr<Client> client) {
   DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
   core_->AllocateAndStart(params, std::move(client));
 }
 
+void DesktopCaptureDeviceAura::RequestRefreshFrame() {
+  core_->RequestRefreshFrame();
+}
+
 void DesktopCaptureDeviceAura::StopAndDeAllocate() {
   core_->StopAndDeAllocate();
 }
 
 }  // namespace content