Move BrowserMessageFilter to public, and into 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/renderer_host/media/video_capture_manager.h"
 #include "content/browser/resource_context.h"
 #include "content/common/media/video_capture_messages.h"
 
+using content::BrowserMessageFilter;
 using content::BrowserThread;
 
 struct VideoCaptureHost::Entry {
   Entry() : state(video_capture::kStopped) {}
 
   Entry(VideoCaptureController* controller, video_capture::State state)
       : controller(controller),
         state(state) {
   }
 
@@ skipping 255 matching lines @@
     }
     delete it->second;
     entries_.erase(id);
   }
 }
 
 media_stream::VideoCaptureManager* VideoCaptureHost::GetVideoCaptureManager() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   return resource_context_->media_stream_manager()->video_capture_manager();
 }