Move platform_thread to base/threading and put in the base namespace. I left ...

chrome/test/automation/automation_proxy.h

 // Copyright (c) 2010 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.
 
-#ifndef CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H__
-#define CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H__
+#ifndef CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H_
+#define CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "app/message_box_flags.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/threading/platform_thread.h"
 #include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "base/thread.h"
 #include "base/waitable_event.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/automation_constants.h"
 #include "chrome/test/automation/automation_handle_tracker.h"
 #include "chrome/test/automation/browser_proxy.h"
 #include "gfx/native_widget_types.h"
@@ skipping 269 matching lines @@
   // a version resource.
   bool perform_version_check_;
 
   // If true, the proxy will disconnect the IPC channel on first failure
   // to send an IPC message. This helps avoid long timeouts in tests.
   bool disconnect_on_failure_;
 
   // Delay to let the browser execute the command.
   base::TimeDelta command_execution_timeout_;
 
-  PlatformThreadId listener_thread_id_;
+  base::PlatformThreadId listener_thread_id_;
 
   DISALLOW_COPY_AND_ASSIGN(AutomationProxy);
 };
 
-#endif  // CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H__
+#endif  // CHROME_TEST_AUTOMATION_AUTOMATION_PROXY_H_