Move a bunch of code in content\renderer to the content namespace.

content/renderer/media/render_media_log.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/renderer/media/render_media_log.h"
 
 #include "base/bind.h"
 #include "base/message_loop_proxy.h"
 #include "content/common/view_messages.h"
 #include "content/renderer/render_thread_impl.h"
 
+namespace content {
+
 RenderMediaLog::RenderMediaLog()
     : render_loop_(base::MessageLoopProxy::current()) {
   DCHECK(RenderThreadImpl::current()) <<
       "RenderMediaLog must be constructed on the render thread";
 }
 
 void RenderMediaLog::AddEvent(scoped_ptr<media::MediaLogEvent> event) {
   if (RenderThreadImpl::current()) {
     RenderThreadImpl::current()->Send(
         new ViewHostMsg_MediaLogEvent(*event));
   } else {
     render_loop_->PostTask(FROM_HERE, base::Bind(
         &RenderMediaLog::AddEvent, this, base::Passed(&event)));
   }
 }
 
 RenderMediaLog::~RenderMediaLog() {}
+
+}  // namespace content