cros: Clean up screenlockPrivate plumbing.

chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc

Index: chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc
diff --git a/chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc b/chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc
index 32b0b80ba4e8ac57bbf69dd503e433ac25f0bb4d..4e06b05129ed60e84a6688db29854fd0c3c4cec5 100644
--- a/chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc
+++ b/chrome/browser/extensions/api/screenlock_private/screenlock_private_api.cc
@@ -128,13 +128,9 @@ void ScreenlockPrivateShowButtonFunction::OnImageLoaded(
     const gfx::Image& image) {
   ScreenlockBridge::LockHandler* locker =
       ScreenlockBridge::Get()->lock_handler();
-  ScreenlockPrivateEventRouter* router =
-      ScreenlockPrivateEventRouter::GetFactoryInstance()->Get(GetProfile());
   locker->ShowUserPodButton(
       ScreenlockBridge::GetAuthenticatedUserEmail(GetProfile()),
-      image,
-      base::Bind(&ScreenlockPrivateEventRouter::OnButtonClicked,
-                 base::Unretained(router)));
+      image);
   SendResponse(error_.empty());
 }
 
@@ -268,10 +264,6 @@ void ScreenlockPrivateEventRouter::Shutdown() {
   ScreenlockBridge::Get()->RemoveObserver(this);
 }
 
-void ScreenlockPrivateEventRouter::OnButtonClicked() {
-  DispatchEvent(screenlock::OnButtonClicked::kEventName, NULL);
-}
-
 void ScreenlockPrivateEventRouter::OnAuthAttempted(
     ScreenlockBridge::LockHandler::AuthType auth_type,
     const std::string& value) {