Remove pnacl_profile_observer from pnacl's use of component updater.

chrome/browser/component_updater/pnacl/pnacl_profile_observer.h

-// Copyright (c) 2013 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_COMPONENT_UPDATER_PNACL_PNACL_PROFILE_OBSERVER_H_
-#define CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_PROFILE_OBSERVER_H_
-
-#include "base/compiler_specific.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-
-namespace component_updater {
-
-class PnaclComponentInstaller;
-
-// Monitors profile switching for ChromeOS to check the per-user
-// version of PNaCl.
-class PnaclProfileObserver : public content::NotificationObserver {
- public:
-  explicit PnaclProfileObserver(PnaclComponentInstaller* installer);
-  virtual ~PnaclProfileObserver();
-
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
- private:
-  content::NotificationRegistrar registrar_;
-  PnaclComponentInstaller* pnacl_installer_;
-  DISALLOW_COPY_AND_ASSIGN(PnaclProfileObserver);
-};
-
-}  // namespace component_updater
-
-#endif  // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_PROFILE_OBSERVER_H_