Add ContentSettingsProvider Interface.

chrome/browser/content_settings/host_content_settings_map.cc

 // Copyright (c) 2011 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/content_settings/host_content_settings_map.h"
 
 #include "base/command_line.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_thread.h"
 #include "chrome/browser/content_settings/content_settings_details.h"
 #include "chrome/browser/content_settings/content_settings_provider.h"
 #include "chrome/browser/content_settings/policy_content_settings_provider.h"
 #include "chrome/browser/content_settings/pref_content_settings_provider.h"
 #include "chrome/browser/metrics/user_metrics.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/prefs/scoped_pref_update.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/notification_source.h"
 #include "chrome/common/notification_type.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
 #include "net/base/static_cookie_policy.h"
 
+using content_settings::DefaultContentSettingsProvider;
+using content_settings::PrefContentSettingsProvider;
+using content_settings::PolicyContentSettingsProvider;
+
 namespace {
 
 // The preference keys where resource identifiers are stored for
 // ContentSettingsType values that support resource identifiers.
 const char* kResourceTypeNames[CONTENT_SETTINGS_NUM_TYPES] = {
   NULL,
   NULL,
   NULL,
   "per_plugin",
   NULL,
@@ skipping 935 matching lines @@
   }
 
   for (size_t i = 0; i < move_items.size(); ++i) {
     Value* pattern_settings_dictionary = NULL;
     all_settings_dictionary->RemoveWithoutPathExpansion(
         move_items[i].first, &pattern_settings_dictionary);
     all_settings_dictionary->SetWithoutPathExpansion(
         move_items[i].second, pattern_settings_dictionary);
   }
 }