Move content_shell and content_browsertests code into the content namespace.

content/shell/shell_browser_context.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_browser_context.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/threading/thread.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/shell/shell_download_manager_delegate.h"
 #include "content/shell/shell_resource_context.h"
 #include "content/shell/shell_switches.h"
 #include "content/shell/shell_url_request_context_getter.h"
 
 #if defined(OS_WIN)
 #include "base/base_paths_win.h"
 #elif defined(OS_LINUX)
 #include "base/nix/xdg_util.h"
 #elif defined(OS_MACOSX)
 #include "base/base_paths_mac.h"
 #endif
 
-using content::BrowserThread;
-
 namespace content {
 
 ShellBrowserContext::ShellBrowserContext() {
   InitWhileIOAllowed();
 }
 
 ShellBrowserContext::~ShellBrowserContext() {
   if (resource_context_.get()) {
     BrowserThread::DeleteSoon(
       BrowserThread::IO, FROM_HERE, resource_context_.release());
@@ skipping 84 matching lines @@
 
 bool ShellBrowserContext::DidLastSessionExitCleanly()  {
   return true;
 }
 
 quota::SpecialStoragePolicy* ShellBrowserContext::GetSpecialStoragePolicy() {
   return NULL;
 }
 
 }  // namespace content