Move ExtensionHost from src/chrome to src/extensions

apps/app_lifetime_monitor.cc

 // Copyright 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.
 
 #include "apps/app_lifetime_monitor.h"
 
 #include "apps/app_window.h"
 #include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
+#include "extensions/browser/extension_host.h"
 #include "extensions/common/extension.h"
 
 namespace apps {
 
 using extensions::Extension;
 using extensions::ExtensionHost;
 
 AppLifetimeMonitor::AppLifetimeMonitor(Profile* profile)
     : profile_(profile) {
   registrar_.Add(
@@ skipping 97 matching lines @@
 
 void AppLifetimeMonitor::NotifyAppStop(const std::string& app_id) {
   FOR_EACH_OBSERVER(Observer, observers_, OnAppStop(profile_, app_id));
 }
 
 void AppLifetimeMonitor::NotifyChromeTerminating() {
   FOR_EACH_OBSERVER(Observer, observers_, OnChromeTerminating());
 }
 
 }  // namespace apps