cleanup: Use EventRouter instead of ExtensionSystem::Get->event_router()

chrome/browser/extensions/api/idle/idle_manager.cc

 // 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.
 
 #include "chrome/browser/extensions/api/idle/idle_manager.h"
 
 #include <utility>
 
 #include "base/stl_util.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/idle/idle_api_constants.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/idle.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/event_router.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 
 namespace keys = extensions::idle_api_constants;
 namespace idle = extensions::api::idle;
 
 namespace extensions {
 
 namespace {
 
 const int kDefaultIdleThreshold = 60;
@@ skipping 20 matching lines @@
 DefaultEventDelegate::~DefaultEventDelegate() {
 }
 
 void DefaultEventDelegate::OnStateChanged(const std::string& extension_id,
                                           IdleState new_state) {
   scoped_ptr<base::ListValue> args(new base::ListValue());
   args->Append(IdleManager::CreateIdleValue(new_state));
   scoped_ptr<Event> event(new Event(idle::OnStateChanged::kEventName,
                                     args.Pass()));
   event->restrict_to_browser_context = profile_;
-  ExtensionSystem::Get(profile_)->event_router()->DispatchEventToExtension(
-      extension_id, event.Pass());
+  EventRouter::Get(profile_)
+      ->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 void DefaultEventDelegate::RegisterObserver(
     EventRouter::Observer* observer) {
-  ExtensionSystem::Get(profile_)->event_router()->RegisterObserver(
-      observer, idle::OnStateChanged::kEventName);
+  EventRouter::Get(profile_)
+      ->RegisterObserver(observer, idle::OnStateChanged::kEventName);
 }
 
 void DefaultEventDelegate::UnregisterObserver(EventRouter::Observer* observer) {
-  ExtensionSystem::Get(profile_)->event_router()->UnregisterObserver(observer);
+  EventRouter::Get(profile_)->UnregisterObserver(observer);
 }
 
-
 class DefaultIdleProvider : public IdleManager::IdleTimeProvider {
  public:
   DefaultIdleProvider();
   virtual ~DefaultIdleProvider();
 
   virtual void CalculateIdleState(int idle_threshold,
                                   IdleCallback notify) OVERRIDE;
   virtual void CalculateIdleTime(IdleTimeCallback notify) OVERRIDE;
   virtual bool CheckIdleStateIsLocked() OVERRIDE;
 };
@@ skipping 191 matching lines @@
       event_delegate_->OnStateChanged(it->first, new_state);
     }
   }
 
   if (listener_count == 0) {
     StopPolling();
   }
 }
 
 }  // namespace extensions