Get the ProfileService object after NOTIFICATION_SESSION_STARTED is sent to Chrome

chrome/browser/chromeos/status/input_method_menu_button.cc

Index: chrome/browser/chromeos/status/input_method_menu_button.cc
diff --git a/chrome/browser/chromeos/status/input_method_menu_button.cc b/chrome/browser/chromeos/status/input_method_menu_button.cc
index ba17067583329a25845a85392697627ed21f2484..46db154394779f98168275d074824887ae37ef83 100644
--- a/chrome/browser/chromeos/status/input_method_menu_button.cc
+++ b/chrome/browser/chromeos/status/input_method_menu_button.cc
@@ -10,8 +10,6 @@
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/status/status_area_view_chromeos.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_window.h"
@@ -19,20 +17,12 @@
 
 namespace {
 
-PrefService* GetPrefService() {
-  Profile* profile = ProfileManager::GetDefaultProfile();
-  if (profile)
-    return profile->GetPrefs();
-  return NULL;
-}
-
 // A class which implements interfaces of chromeos::InputMethodMenu. This class
 // is just for avoiding multiple inheritance.
 class MenuImpl : public chromeos::InputMethodMenu {
  public:
-  MenuImpl(chromeos::InputMethodMenuButton* button,
-           PrefService* pref_service)
-      : InputMethodMenu(pref_service, false), button_(button) {}
+  explicit MenuImpl(chromeos::InputMethodMenuButton* button)
+      : InputMethodMenu(false), button_(button) {}
 
  private:
   // InputMethodMenu implementation.
@@ -64,7 +54,7 @@ namespace chromeos {
 InputMethodMenuButton::InputMethodMenuButton(
     StatusAreaButton::Delegate* delegate)
     : StatusAreaButton(delegate, this),
-      menu_(new MenuImpl(this, GetPrefService())) {
+      menu_(new MenuImpl(this)) {
   set_id(VIEW_ID_STATUS_BUTTON_INPUT_METHOD);
   UpdateUIFromCurrentInputMethod();
 }