Reland "Tab (and AuraWindow) Capture: Capture refresh frame after Resume()"

content/browser/media/capture/web_contents_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 "content/browser/media/capture/web_contents_video_capture_device.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 646 matching lines @@
   if (!view) {
     DVLOG(1) << "Cannot renew subscription: No view to capture.";
     return;
   }
 
   DVLOG(1) << "Renewing subscription to RenderWidgetHostView@" << view;
   subscription_.reset(new ContentCaptureSubscription(
       view->GetWeakPtr(), oracle_proxy_,
       base::Bind(&WebContentsCaptureMachine::Capture,
                  weak_ptr_factory_.GetWeakPtr())));
+  // Capture a refresh frame immediately to make sure the latest frame in the
+  // video stream has the correct content.
+  subscription_->MaybeCaptureForRefresh();
 }
 
 void WebContentsCaptureMachine::UpdateCaptureSize() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (!oracle_proxy_)
     return;
   RenderWidgetHostView* const view = tracker_->GetTargetView();
   if (!view)
     return;
@@ skipping 64 matching lines @@
 void WebContentsVideoCaptureDevice::StopAndDeAllocate() {
   core_->StopAndDeAllocate();
 }
 
 void WebContentsVideoCaptureDevice::OnUtilizationReport(int frame_feedback_id,
                                                         double utilization) {
   core_->OnConsumerReportingUtilization(frame_feedback_id, utilization);
 }
 
 }  // namespace content