Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

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.
 //
 // Implementation notes: This needs to work on a variety of hardware
 // configurations where the speed of the CPU and GPU greatly affect overall
 // performance. Spanning several threads, the process of capturing has been
 // split up into four conceptual stages:
 //
 //   1. Reserve Buffer: Before a frame can be captured, a slot in the client's
@@ skipping 35 matching lines @@
 // is obtained.
 //
 // Turning on verbose logging will cause the effective frame rate to be logged
 // at 5-second intervals.
 
 #include "content/browser/media/capture/web_contents_video_capture_device.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
-#include "base/location.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
-#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "content/browser/media/capture/content_video_capture_device_core.h"
 #include "content/browser/media/capture/video_capture_oracle.h"
 #include "content/browser/media/capture/web_contents_capture_util.h"
 #include "content/browser/media/capture/web_contents_tracker.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 554 matching lines @@
     const SkBitmap& bitmap,
     ReadbackResponse response) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   base::TimeTicks now = base::TimeTicks::Now();
   DCHECK(render_thread_.get());
   if (response == READBACK_SUCCESS) {
     UMA_HISTOGRAM_TIMES("TabCapture.CopyTimeBitmap", now - start_time);
     TRACE_EVENT_ASYNC_STEP_INTO0("gpu.capture", "Capture", target.get(),
                                  "Render");
-    render_thread_->task_runner()->PostTask(
-        FROM_HERE, base::Bind(&RenderVideoFrame, bitmap, target,
-                              base::Bind(deliver_frame_cb, start_time)));
+    render_thread_->message_loop_proxy()->PostTask(FROM_HERE, base::Bind(
+        &RenderVideoFrame, bitmap, target,
+        base::Bind(deliver_frame_cb, start_time)));
   } else {
     // Capture can fail due to transient issues, so just skip this frame.
     DVLOG(1) << "CopyFromBackingStore failed; skipping frame.";
     deliver_frame_cb.Run(start_time, false);
   }
 }
 
 void WebContentsCaptureMachine::DidCopyFromCompositingSurfaceToVideoFrame(
     const base::TimeTicks& start_time,
     const RenderWidgetHostViewFrameSubscriber::DeliverFrameCallback&
@@ skipping 89 matching lines @@
     scoped_ptr<Client> client) {
   DVLOG(1) << "Allocating " << params.requested_format.frame_size.ToString();
   core_->AllocateAndStart(params, client.Pass());
 }
 
 void WebContentsVideoCaptureDevice::StopAndDeAllocate() {
   core_->StopAndDeAllocate();
 }
 
 }  // namespace content