rename ExtensionProvider and PlatformAppProvider class

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>
 
@@ skipping 14 matching lines @@
 }
 
 namespace content_settings {
 class OriginIdentifierValueMap;
 class RuleIterator;
 }
 
 namespace extensions {
 
 // This class is the backend for extension-defined content settings. It is used
-// by the content_settings::ExtensionProvider to integrate its settings into the
-// HostContentSettingsMap and by the content settings extension API to provide
-// extensions with access to content settings.
+// by the content_settings::CustomExtensionProvider to integrate its settings
+// into the HostContentSettingsMap and by the content settings extension API to
+// provide extensions with access to content settings.
 class ContentSettingsStore
     : public base::RefCountedThreadSafe<ContentSettingsStore> {
  public:
   class Observer {
    public:
     virtual ~Observer() {}
 
     // Called when a content setting changes in the
     // ContentSettingsStore.
     virtual void OnContentSettingChanged(
@@ skipping 90 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_