Expose a method to invalidate menu item content

chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java
index ae42a9ba094cc789b5dad1b1ea181d21c4327223..e807dbcafbaaf4ef6cd43ea03f3500b554c377d2 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuHandler.java
@@ -50,6 +50,17 @@ public class AppMenuHandler {
     }
 
     /**
+     * Notifies the menu that the contents of the menu item specified by {@code menuRowId} have
+     * changed.  This should be called if icons, titles, etc. are changing for a particular menu
+     * item while the menu is open.
+     * @param menuRowId The id of the menu item to change.  This must be a row id and not a child
+     *                  id.
+     */
+    public void menuItemContentChanged(int menuRowId) {
+        if (mAppMenu != null) mAppMenu.menuItemContentChanged(menuRowId);
+    }
+
+    /**
      * Show the app menu.
      * @param anchorView         Anchor view (usually a menu button) to be used for the popup.
      * @param isByHardwareButton True if hardware button triggered it. (oppose to software