return false for media keys if no controller

bug:16311395
Change-Id: I4cde865858f99a9159abc181cc987fbd9866025b
diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindow.java b/policy/src/com/android/internal/policy/impl/PhoneWindow.java
index edeb5b4..af7bf8a 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindow.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindow.java
@@ -1729,6 +1729,7 @@
                         return true;
                     }
                 }
+                return false;
             }
 
             case KeyEvent.KEYCODE_MENU: {
@@ -1822,6 +1823,7 @@
                         return true;
                     }
                 }
+                return false;
             }
 
             case KeyEvent.KEYCODE_MENU: {