FBTF: Remove "obviously" unneeded standard C++ library #includes.

chrome/common/chrome_plugin_lib.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_COMMON_CHROME_PLUGIN_LIB_H_
 #define CHROME_COMMON_CHROME_PLUGIN_LIB_H_
 #pragma once
 
-#include <string>
-
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/ref_counted.h"
 #include "chrome/common/chrome_plugin_api.h"
 
 class MessageLoop;
 
 // A ChromePluginLib is a single Chrome Plugin Library.
 // This class is used in the browser process (IO thread), and the plugin process
 // (plugin thread).  It should not be accessed on other threads, because it
@@ skipping 77 matching lines @@
   CPPluginFuncs plugin_funcs_;
 
   // Used for unit tests.
   typedef int (STDCALL *CP_TestFunc)(void*);
   CP_TestFunc CP_Test_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePluginLib);
 };
 
 #endif  // CHROME_COMMON_CHROME_PLUGIN_LIB_H_