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

chrome/browser/geolocation/geolocation_content_settings_map.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.
 
 // Maps [requesting_origin, embedder] to content settings.  Written on the UI
 // thread and read on any thread.  One instance per profile. This is based on
 // HostContentSettingsMap but differs significantly in two aspects:
 // - It maps [requesting_origin.GetOrigin(), embedder.GetOrigin()] => setting
 //   rather than host => setting.
 // - It manages only Geolocation.
 
 #ifndef CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_
 #define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_
 #pragma once
 
 #include <map>
-#include <string>
 
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
 #include "chrome/common/content_settings.h"
 #include "googleurl/src/gurl.h"
 
 class DictionaryValue;
 class PrefService;
 class Profile;
 
@@ skipping 67 matching lines @@
       const DictionaryValue* dictionary,
       OneOriginSettings* one_origin_settings);
 
   // The profile we're associated with.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(GeolocationContentSettingsMap);
 };
 
 #endif  // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_CONTENT_SETTINGS_MAP_H_