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

extensions/browser/api/storage/storage_frontend.cc

 // Copyright 2014 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 "extensions/browser/api/storage/storage_frontend.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/lazy_instance.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "extensions/browser/api/extensions_api_client.h"
 #include "extensions/browser/api/storage/leveldb_settings_storage_factory.h"
 #include "extensions/browser/api/storage/local_value_store_cache.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/common/api/storage.h"
 
 using content::BrowserContext;
 using content::BrowserThread;
 
 namespace extensions {
 
 namespace {
 
 base::LazyInstance<BrowserContextKeyedAPIFactory<StorageFrontend> > g_factory =
@@ skipping 12 matching lines @@
       settings_namespace::Namespace settings_namespace,
       const std::string& change_json) OVERRIDE {
     // TODO(gdk): This is a temporary hack while the refactoring for
     // string-based event payloads is removed. http://crbug.com/136045
     scoped_ptr<base::ListValue> args(new base::ListValue());
     args->Append(base::JSONReader::Read(change_json));
     args->Append(new base::StringValue(settings_namespace::ToString(
         settings_namespace)));
     scoped_ptr<Event> event(new Event(
         core_api::storage::OnChanged::kEventName, args.Pass()));
-    ExtensionSystem::Get(browser_context_)->event_router()->
-        DispatchEventToExtension(extension_id, event.Pass());
+    EventRouter::Get(browser_context_)
+        ->DispatchEventToExtension(extension_id, event.Pass());
   }
 
  private:
   BrowserContext* const browser_context_;
 };
 
 }  // namespace
 
 // static
 StorageFrontend* StorageFrontend::Get(BrowserContext* context) {
@@ skipping 109 matching lines @@
 // static
 BrowserContextKeyedAPIFactory<StorageFrontend>*
 StorageFrontend::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 // static
 const char* StorageFrontend::service_name() { return "StorageFrontend"; }
 
 }  // namespace extensions