Moved ExternalExtensionLoaders/Providers into extensions namespace

chrome/browser/extensions/external_policy_extension_loader.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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_EXTENSION_LOADER_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_EXTENSION_LOADER_H_
-
-#include "chrome/browser/extensions/external_extension_loader.h"
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/prefs/pref_change_registrar.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-
-class Profile;
-
-// A specialization of the ExternalExtensionProvider that uses
-// prefs::kExtensionInstallForceList to look up which external extensions are
-// registered.
-class ExternalPolicyExtensionLoader
-    : public ExternalExtensionLoader,
-      public content::NotificationObserver {
- public:
-  explicit ExternalPolicyExtensionLoader(Profile* profile);
-
-  // content::NotificationObserver implementation
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
- protected:
-  virtual void StartLoading() OVERRIDE;
-
- private:
-  friend class base::RefCountedThreadSafe<ExternalExtensionLoader>;
-
-  virtual ~ExternalPolicyExtensionLoader() {}
-
-  PrefChangeRegistrar pref_change_registrar_;
-  content::NotificationRegistrar notification_registrar_;
-
-  Profile* profile_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExternalPolicyExtensionLoader);
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_POLICY_EXTENSION_LOADER_H_