Update StickyKeys overlay to show or hide AltGr depending on the

chrome/browser/chromeos/accessibility/accessibility_manager.h

Index: chrome/browser/chromeos/accessibility/accessibility_manager.h
diff --git a/chrome/browser/chromeos/accessibility/accessibility_manager.h b/chrome/browser/chromeos/accessibility/accessibility_manager.h
index 41fb8bc40df0414afcf2a4e5190cd5dbea90104a..a5c059af0ba96741283c070d264a3eb0282fbad6 100644
--- a/chrome/browser/chromeos/accessibility/accessibility_manager.h
+++ b/chrome/browser/chromeos/accessibility/accessibility_manager.h
@@ -15,6 +15,7 @@
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_util.h"
 #include "chrome/browser/extensions/api/braille_display_private/braille_controller.h"
+#include "chromeos/ime/input_method_manager.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "extensions/browser/event_router.h"
@@ -66,9 +67,11 @@ typedef AccessibilityStatusCallbackList::Subscription
 // AccessibilityManager changes the statuses of accessibility features
 // watching profile notifications and pref-changes.
 // TODO(yoshiki): merge MagnificationManager with AccessibilityManager.
-class AccessibilityManager : public content::NotificationObserver,
-    extensions::api::braille_display_private::BrailleObserver,
-    public ash::SessionStateObserver {
+class AccessibilityManager
+    : public content::NotificationObserver,
+      public extensions::api::braille_display_private::BrailleObserver,
+      public input_method::InputMethodManager::Observer,
+      public ash::SessionStateObserver {
  public:
   // Creates an instance of AccessibilityManager, this should be called once,
   // because only one instance should exist at the same time.
@@ -216,6 +219,11 @@ class AccessibilityManager : public content::NotificationObserver,
       const extensions::api::braille_display_private::DisplayState&
           display_state) OVERRIDE;
 
+  // Overridden from InputMethodManager::Observer.
+  virtual void InputMethodChanged(input_method::InputMethodManager* manager,
+                                  bool show_message) OVERRIDE;
+
+
   // Profile which has the current a11y context.
   Profile* profile_;