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

content/renderer/idle_user_detector.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/renderer/idle_user_detector.h"
 
 #include "base/logging.h"
 #include "content/common/view_messages.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/render_thread_impl.h"
 
-IdleUserDetector::IdleUserDetector(content::RenderView* render_view)
-    : content::RenderViewObserver(render_view){
+namespace content {
+
+IdleUserDetector::IdleUserDetector(RenderView* render_view)
+    : RenderViewObserver(render_view){
 }
 
 IdleUserDetector::~IdleUserDetector() {
 }
 
 bool IdleUserDetector::OnMessageReceived(const IPC::Message& message) {
   IPC_BEGIN_MESSAGE_MAP(IdleUserDetector, message)
     IPC_MESSAGE_HANDLER(ViewMsg_HandleInputEvent, OnHandleInputEvent)
   IPC_END_MESSAGE_MAP()
   return false;
 }
 
 void IdleUserDetector::OnHandleInputEvent(const IPC::Message& message) {
-  if (content::GetContentClient()->renderer()->
-          RunIdleHandlerWhenWidgetsHidden()) {
+  if (GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     RenderThreadImpl* render_thread = RenderThreadImpl::current();
     if (render_thread != NULL) {
       render_thread->PostponeIdleNotification();
     }
   }
 }
+
+}  // namespace content