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

chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.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/bookmark_manager_private/bookmark_manager_private_api.h"
 
 #include <vector>
 
 #include "base/lazy_instance.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 15 matching lines @@
 #include "chrome/browser/undo/bookmark_undo_service.h"
 #include "chrome/browser/undo/bookmark_undo_service_factory.h"
 #include "chrome/common/extensions/api/bookmark_manager_private.h"
 #include "chrome/common/pref_names.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/browser/web_ui.h"
 #include "extensions/browser/extension_function_dispatcher.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/browser/view_type_utils.h"
 #include "grit/generated_resources.h"
 #include "ui/base/dragdrop/drag_drop_types.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/webui/web_ui_util.h"
 
 #if defined(OS_WIN)
 #include "win8/util/win8_util.h"
 #endif  // OS_WIN
 
@@ skipping 126 matching lines @@
 }
 
 BookmarkManagerPrivateEventRouter::~BookmarkManagerPrivateEventRouter() {
   if (bookmark_model_)
     bookmark_model_->RemoveObserver(this);
 }
 
 void BookmarkManagerPrivateEventRouter::DispatchEvent(
     const std::string& event_name,
     scoped_ptr<base::ListValue> event_args) {
-  extensions::ExtensionSystem::Get(browser_context_)
-      ->event_router()
-      ->BroadcastEvent(make_scoped_ptr(
-          new extensions::Event(event_name, event_args.Pass())));
+  extensions::EventRouter::Get(browser_context_)->BroadcastEvent(
+      make_scoped_ptr(new extensions::Event(event_name, event_args.Pass())));
 }
 
 void BookmarkManagerPrivateEventRouter::BookmarkModelChanged() {}
 
 void BookmarkManagerPrivateEventRouter::BookmarkModelBeingDeleted(
     BookmarkModel* model) {
   bookmark_model_ = NULL;
 }
 
 void BookmarkManagerPrivateEventRouter::BookmarkMetaInfoChanged(
     BookmarkModel* model,
     const BookmarkNode* node) {
   DispatchEvent(bookmark_manager_private::OnMetaInfoChanged::kEventName,
                 bookmark_manager_private::OnMetaInfoChanged::Create(
                     base::Int64ToString(node->id())));
 }
 
 BookmarkManagerPrivateAPI::BookmarkManagerPrivateAPI(
     content::BrowserContext* browser_context)
     : browser_context_(browser_context) {
-  EventRouter* event_router =
-      ExtensionSystem::Get(browser_context)->event_router();
+  EventRouter* event_router = EventRouter::Get(browser_context);
   event_router->RegisterObserver(
       this, bookmark_manager_private::OnMetaInfoChanged::kEventName);
 }
 
 BookmarkManagerPrivateAPI::~BookmarkManagerPrivateAPI() {}
 
 void BookmarkManagerPrivateAPI::Shutdown() {
-  ExtensionSystem::Get(browser_context_)->event_router()->UnregisterObserver(
-      this);
+  EventRouter::Get(browser_context_)->UnregisterObserver(this);
 }
 
 static base::LazyInstance<
     BrowserContextKeyedAPIFactory<BookmarkManagerPrivateAPI> > g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 // static
 BrowserContextKeyedAPIFactory<BookmarkManagerPrivateAPI>*
 BookmarkManagerPrivateAPI::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 void BookmarkManagerPrivateAPI::OnListenerAdded(
     const EventListenerInfo& details) {
-  ExtensionSystem::Get(browser_context_)->event_router()->UnregisterObserver(
-      this);
+  EventRouter::Get(browser_context_)->UnregisterObserver(this);
   event_router_.reset(new BookmarkManagerPrivateEventRouter(
       browser_context_,
       BookmarkModelFactory::GetForProfile(
           Profile::FromBrowserContext(browser_context_))));
 }
 
 BookmarkManagerPrivateDragEventRouter::BookmarkManagerPrivateDragEventRouter(
     Profile* profile,
     content::WebContents* web_contents)
     : profile_(profile), web_contents_(web_contents) {
   BookmarkTabHelper* bookmark_tab_helper =
       BookmarkTabHelper::FromWebContents(web_contents_);
   bookmark_tab_helper->set_bookmark_drag_delegate(this);
 }
 
 BookmarkManagerPrivateDragEventRouter::
     ~BookmarkManagerPrivateDragEventRouter() {
   BookmarkTabHelper* bookmark_tab_helper =
       BookmarkTabHelper::FromWebContents(web_contents_);
   if (bookmark_tab_helper->bookmark_drag_delegate() == this)
     bookmark_tab_helper->set_bookmark_drag_delegate(NULL);
 }
 
 void BookmarkManagerPrivateDragEventRouter::DispatchEvent(
     const std::string& event_name,
     scoped_ptr<base::ListValue> args) {
-  if (!ExtensionSystem::Get(profile_)->event_router())
+  EventRouter* event_router = EventRouter::Get(profile_);
+  if (!event_router)
     return;
 
   scoped_ptr<Event> event(new Event(event_name, args.Pass()));
-  ExtensionSystem::Get(profile_)->event_router()->BroadcastEvent(event.Pass());
+  event_router->BroadcastEvent(event.Pass());
 }
 
 void BookmarkManagerPrivateDragEventRouter::OnDragEnter(
     const BookmarkNodeData& data) {
   if (data.size() == 0)
     return;
   DispatchEvent(bookmark_manager_private::OnDragEnter::kEventName,
                 bookmark_manager_private::OnDragEnter::Create(
                     *CreateApiBookmarkNodeData(profile_, data)));
 }
@@ skipping 427 matching lines @@
   result.enabled = undo_manager->redo_count() > 0;
   result.label = base::UTF16ToUTF8(undo_manager->GetRedoLabel());
 
   results_ = RedoInfo::Results::Create(result);
 #endif  // !defined(OS_ANDROID)
 
   return true;
 }
 
 }  // namespace extensions