Bug 725123: Dispatch an event when the MENU button is pressed. r=qDot

b2g/chrome/content/shell.js

@@ -134,6 +134,7 @@ var shell = {
     window.controllers.appendController(this);
     window.addEventListener('keypress', this);
     window.addEventListener('MozApplicationManifest', this);
+    window.addEventListener("AppCommand", this);
     this.contentBrowser.addEventListener('load', this, true);
 
     try {
@@ -225,6 +226,13 @@ var shell = {
             break;
         }
         break;
+      case 'AppCommand':
+        switch (evt.command) {
+          case 'Menu':
+            this.sendEvent(content, 'menu');
+            break;
+        }
+        break;
       case 'load':
         this.contentBrowser.removeEventListener('load', this, true);
         this.turnScreenOn();