Cleanup: Fix some lint/style errors in extensions code.

chrome/browser/extensions/api/content_settings/content_settings_store.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_STORE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_STORE_H_
 
 #include <map>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "base/tuple.h"
 #include "chrome/browser/content_settings/content_settings_provider.h"
 #include "chrome/common/content_settings.h"
 #include "chrome/common/content_settings_pattern.h"
 #include "extensions/browser/extension_prefs_scope.h"
-#include "url/gurl.h"
 
 namespace base {
 class ListValue;
 }
 
 namespace content_settings {
 class OriginIdentifierValueMap;
 class RuleIterator;
 }
 
@@ skipping 106 matching lines @@
   ObserverList<Observer, false> observers_;
 
   mutable base::Lock lock_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentSettingsStore);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_CONTENT_SETTINGS_CONTENT_SETTINGS_STORE_H_