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

chrome/browser/chromeos/extensions/file_manager/event_router.cc

Index: chrome/browser/chromeos/extensions/file_manager/event_router.cc
diff --git a/chrome/browser/chromeos/extensions/file_manager/event_router.cc b/chrome/browser/chromeos/extensions/file_manager/event_router.cc
index 5179248a0e771ad725ecea0af172f335df9fc13b..ae98987918cead30ad0a6bcd5f6186e7474058c3 100644
--- a/chrome/browser/chromeos/extensions/file_manager/event_router.cc
+++ b/chrome/browser/chromeos/extensions/file_manager/event_router.cc
@@ -172,9 +172,8 @@ bool IsRecoveryToolRunning(Profile* profile) {
 void BroadcastEvent(Profile* profile,
                     const std::string& event_name,
                     scoped_ptr<base::ListValue> event_args) {
-  extensions::ExtensionSystem::Get(profile)->event_router()->
-      BroadcastEvent(make_scoped_ptr(
-          new extensions::Event(event_name, event_args.Pass())));
+  extensions::EventRouter::Get(profile)->BroadcastEvent(
+      make_scoped_ptr(new extensions::Event(event_name, event_args.Pass())));
 }
 
 file_browser_private::MountCompletedStatus
@@ -559,8 +558,7 @@ void EventRouter::OnCopyProgress(
 }
 
 void EventRouter::DefaultNetworkChanged(const chromeos::NetworkState* network) {
-  if (!profile_ ||
-      !extensions::ExtensionSystem::Get(profile_)->event_router()) {
+  if (!profile_ || !extensions::EventRouter::Get(profile_)) {
     NOTREACHED();
     return;
   }
@@ -572,8 +570,7 @@ void EventRouter::DefaultNetworkChanged(const chromeos::NetworkState* network) {
 }
 
 void EventRouter::OnFileManagerPrefsChanged() {
-  if (!profile_ ||
-      !extensions::ExtensionSystem::Get(profile_)->event_router()) {
+  if (!profile_ || !extensions::EventRouter::Get(profile_)) {
     NOTREACHED();
     return;
   }