Update CrOS to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc

Index: chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
diff --git a/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc b/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
index d9ace4b73582121a5633ff2f6db5b09a3bf9c145..000287a4965cda89a72e5c4dbcd910a084386b61 100644
--- a/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
+++ b/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
@@ -100,7 +100,7 @@ void ScreensaverUnpackerClient::LoadScreensaverExtension(
                                          extensions::Manifest::COMPONENT,
                                          Extension::NO_FLAGS,
                                          &error);
-  if (!screensaver_extension) {
+  if (!screensaver_extension.get()) {
     LOG(ERROR) << "Could not load screensaver extension from: "
                << screensaver_extension_path.value() << " due to: " << error;
     NotifyAppPackOfDamagedFile();
@@ -221,10 +221,10 @@ void KioskModeScreensaver::SetupScreensaver(
   Profile* default_profile = ProfileManager::GetDefaultProfile();
   // Add the extension to the extension service and display the screensaver.
   if (default_profile) {
-    extensions::ExtensionSystem::Get(default_profile)->extension_service()->
-        AddExtension(extension);
+    extensions::ExtensionSystem::Get(default_profile)->extension_service()
+        ->AddExtension(extension.get());
     ash::ShowScreensaver(
-        extensions::AppLaunchInfo::GetFullLaunchURL(extension));
+        extensions::AppLaunchInfo::GetFullLaunchURL(extension.get()));
   } else {
     LOG(ERROR) << "Couldn't get default profile. Unable to load screensaver!";
     ShutdownKioskModeScreensaver();