Migrate Obsolete NotificationsSettings and remove content_settings::NotificationsProvider.

chrome/browser/content_settings/host_content_settings_map.h

 // 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.
 
 // Maps hostnames to custom content settings.  Written on the UI thread and read
 // on any thread.  One instance per profile.
 
 #ifndef CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_
 #pragma once
@@ skipping 24 matching lines @@
 class ExtensionService;
 class GURL;
 class PrefService;
 class Profile;
 
 class HostContentSettingsMap
     : public content_settings::Observer,
       public NotificationObserver,
       public base::RefCountedThreadSafe<HostContentSettingsMap> {
  public:
+  // TODO(markusheintz): I sold my soul to the devil on order to add this tuple.
+  // I really want my soul back, so I really will change this ASAP.
   typedef Tuple4<ContentSettingsPattern,
                  ContentSettingsPattern,
                  ContentSetting,
                  std::string> PatternSettingSourceTuple;
   typedef std::vector<PatternSettingSourceTuple> SettingsForOneType;
 
   HostContentSettingsMap(PrefService* prefs,
                          ExtensionService* extension_service,
                          bool incognito);
 
@@ skipping 188 matching lines @@
   mutable base::Lock lock_;
 
   // Misc global settings.
   bool block_third_party_cookies_;
   bool is_block_third_party_cookies_managed_;
 
   DISALLOW_COPY_AND_ASSIGN(HostContentSettingsMap);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_HOST_CONTENT_SETTINGS_MAP_H_