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

chrome/browser/chromeos/file_manager/file_browser_handlers.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/chromeos/file_manager/file_browser_handlers.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/i18n/case_conversion.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 341 matching lines @@
     int handler_pid_in,
     extensions::ExtensionHost* host) {
   int handler_pid = host ? host->render_process_host()->GetID() :
       handler_pid_in;
 
   if (handler_pid <= 0) {
     ExecuteDoneOnUIThread(false);
     return;
   }
 
-  extensions::EventRouter* event_router =
-      extensions::ExtensionSystem::Get(profile_)->event_router();
-  if (!event_router) {
+  extensions::EventRouter* router = extensions::EventRouter::Get(profile_);
+  if (!router) {
     ExecuteDoneOnUIThread(false);
     return;
   }
 
   SetupHandlerHostFileAccessPermissions(
       file_definition_list.get(), extension_.get(), handler_pid);
 
   scoped_ptr<base::ListValue> event_args(new base::ListValue());
   event_args->Append(new base::StringValue(action_id_));
   base::DictionaryValue* details = new base::DictionaryValue();
@@ skipping 150 matching lines @@
       if (common_handlers.empty())
         return FileBrowserHandlerList();
     }
   }
 
   return common_handlers;
 }
 
 }  // namespace file_browser_handlers
 }  // namespace file_manager