Move content_shell and content_browsertests code into the content namespace.

content/shell/shell_content_renderer_client.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/shell/shell_content_renderer_client.h"
 
 #include "base/command_line.h"
 #include "content/shell/layout_test_controller.h"
 #include "content/shell/shell_render_process_observer.h"
 #include "content/shell/shell_switches.h"
 #include "v8/include/v8.h"
 
 namespace content {
 
 ShellContentRendererClient::ShellContentRendererClient() {
 }
 
 ShellContentRendererClient::~ShellContentRendererClient() {
 }
 
 void ShellContentRendererClient::RenderThreadStarted() {
   shell_observer_.reset(new ShellRenderProcessObserver());
 }
 
 void ShellContentRendererClient::RenderViewCreated(RenderView* render_view) {
   if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDumpRenderTree))
     return;
 
-  new content::LayoutTestController(render_view);
+  new LayoutTestController(render_view);
 }
 
 }  // namespace content