Move ExtensionEventRouter and related into extensions namespace

chrome/browser/extensions/extension_preference_api.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_preference_api.h"
 
 #include <map>
 #include <utility>
 
 #include "base/memory/singleton.h"
 #include "base/stl_util.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/proxy/proxy_api.h"
-#include "chrome/browser/extensions/extension_event_router.h"
 #include "chrome/browser/extensions/extension_preference_api_constants.h"
 #include "chrome/browser/extensions/extension_preference_helpers.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_prefs_scope.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension_error_utils.h"
 #include "chrome/common/extensions/permissions/api_permission.h"
@@ skipping 459 matching lines @@
 
   std::string browser_pref;
   if (!ValidateBrowserPref(pref_key, &browser_pref))
     return false;
 
   extensions::ExtensionPrefs* prefs =
       profile_->GetExtensionService()->extension_prefs();
   prefs->RemoveExtensionControlledPref(extension_id(), browser_pref, scope);
   return true;
 }