Remove calls to deprecated MessageLoop methods on Windows and Linux.

media/capture/video/linux/video_capture_device_linux.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 "media/capture/video/linux/video_capture_device_linux.h"
 
 #include <stddef.h>
 
 #include <list>
 
 #include "base/bind.h"
+#include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "media/capture/video/linux/v4l2_capture_delegate.h"
 
 #if defined(OS_OPENBSD)
 #include <sys/videoio.h>
 #else
 #include <linux/videodev2.h>
 #endif
 
 namespace media {
@@ skipping 33 matching lines @@
   v4l2_thread_.Start();
 
   const int line_frequency =
       TranslatePowerLineFrequencyToV4L2(GetPowerLineFrequency(params));
   capture_impl_ = new V4L2CaptureDelegate(
       device_descriptor_, v4l2_thread_.task_runner(), line_frequency);
   if (!capture_impl_) {
     client->OnError(FROM_HERE, "Failed to create VideoCaptureDelegate");
     return;
   }
-  v4l2_thread_.message_loop()->PostTask(
+  v4l2_thread_.task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&V4L2CaptureDelegate::AllocateAndStart, capture_impl_,
                  params.requested_format.frame_size.width(),
                  params.requested_format.frame_size.height(),
                  params.requested_format.frame_rate, base::Passed(&client)));
 }
 
 void VideoCaptureDeviceLinux::StopAndDeAllocate() {
   if (!v4l2_thread_.IsRunning())
     return;  // Wrong state.
-  v4l2_thread_.message_loop()->PostTask(
+  v4l2_thread_.task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&V4L2CaptureDelegate::StopAndDeAllocate, capture_impl_));
   v4l2_thread_.Stop();
 
   capture_impl_ = NULL;
 }
 
 void VideoCaptureDeviceLinux::SetRotation(int rotation) {
   if (v4l2_thread_.IsRunning()) {
-    v4l2_thread_.message_loop()->PostTask(
+    v4l2_thread_.task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&V4L2CaptureDelegate::SetRotation, capture_impl_, rotation));
   }
 }
 
 // static
 int VideoCaptureDeviceLinux::TranslatePowerLineFrequencyToV4L2(
     PowerLineFrequency frequency) {
   switch (frequency) {
     case media::PowerLineFrequency::FREQUENCY_50HZ:
       return V4L2_CID_POWER_LINE_FREQUENCY_50HZ;
     case media::PowerLineFrequency::FREQUENCY_60HZ:
       return V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
     default:
       // If we have no idea of the frequency, at least try and set it to AUTO.
       return V4L2_CID_POWER_LINE_FREQUENCY_AUTO;
   }
 }
 
 }  // namespace media