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

chrome/browser/cocoa/extensions/extension_install_prompt_controller.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_BROWSER_COCOA_EXTENSION_INSTALL_PROMPT_H_
 #define CHROME_BROWSER_COCOA_EXTENSION_INSTALL_PROMPT_H_
 #pragma once
 
-#include <string>
 #include <vector>
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsobject.h"
+#include "base/string16.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
 class Extension;
 class Profile;
 
 // A controller for dialog to let the user install an extension. Created by
 // CrxInstaller.
 @interface ExtensionInstallPromptController : NSWindowController {
 @private
@@ skipping 28 matching lines @@
                   delegate:(ExtensionInstallUI::Delegate*)delegate
                       icon:(SkBitmap*)bitmap
                   warnings:(const std::vector<string16>&)warnings;
 - (void)runAsModalSheet;
 - (IBAction)cancel:(id)sender;
 - (IBAction)ok:(id)sender;
 
 @end
 
 #endif  /* CHROME_BROWSER_COCOA_EXTENSION_INSTALL_PROMPT_H_ */