Remove GetExtensionService from Profile.

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 5edee1a264a7b5b2d404018f1e1b46c07adfb6a3..1e5e5a45c108013445daf76528fadf3b6185b091 100644
--- a/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
+++ b/chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/chromeos/login/user_manager.h"
 #include "chrome/browser/chromeos/login/webui_login_display_host.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/sandboxed_unpacker.h"
 #include "chrome/browser/policy/app_pack_updater.h"
 #include "chrome/browser/policy/browser_policy_connector.h"
@@ -179,8 +180,8 @@ void KioskModeScreensaver::ScreensaverPathCallback(
   Profile* default_profile = ProfileManager::GetDefaultProfile();
   if (!default_profile)
     return;
-  FilePath extensions_dir =
-      default_profile->GetExtensionService()->install_directory();
+  FilePath extensions_dir = extensions::ExtensionSystem::Get(default_profile)->
+      extension_service()->install_directory();
   scoped_refptr<SandboxedUnpacker> screensaver_unpacker(
       new SandboxedUnpacker(
           screensaver_crx,
@@ -219,7 +220,8 @@ void KioskModeScreensaver::SetupScreensaver(
   Profile* default_profile = ProfileManager::GetDefaultProfile();
   // Add the extension to the extension service and display the screensaver.
   if (default_profile) {
-    default_profile->GetExtensionService()->AddExtension(extension);
+    extensions::ExtensionSystem::Get(default_profile)->extension_service()->
+        AddExtension(extension);
     ash::ShowScreensaver(extension->GetFullLaunchURL());
   } else {
     LOG(ERROR) << "Couldn't get default profile. Unable to load screensaver!";