Move BrowserThread to content namespace.

content/browser/renderer_host/media/video_capture_host.cc

 // Copyright (c) 2011 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/renderer_host/media/video_capture_host.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/resource_context.h"
 #include "content/common/media/video_capture_messages.h"
 
+using content::BrowserThread;
+
 VideoCaptureHost::VideoCaptureHost(
     const content::ResourceContext* resource_context)
     : resource_context_(resource_context) {
 }
 
 VideoCaptureHost::~VideoCaptureHost() {}
 
 void VideoCaptureHost::OnChannelClosing() {
   BrowserMessageFilter::OnChannelClosing();
 
@@ skipping 170 matching lines @@
 
 void VideoCaptureHost::DoDeleteVideoCaptureController(
     const VideoCaptureControllerID& id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // Report that the device have successfully been stopped.
   Send(new VideoCaptureMsg_StateChanged(id.device_id,
                                         media::VideoCapture::kStopped));
   entries_.erase(id);
 }