Bug 1046732 - Part 1: Fix incorrect event message used in TouchCaret.cpp. r=ehsan

NS_WHEEL_EVENT_START isn't a specific event message for compairing in
the switch case. Since we would like to hide touch caret whenever
receving wheel events, all the wheel event types are added.

layout/base/TouchCaret.cpp

@@ -586,9 +586,11 @@ TouchCaret::HandleEvent(WidgetEvent* aEvent)
     case NS_KEY_UP:
     case NS_KEY_DOWN:
     case NS_KEY_PRESS:
-    case NS_WHEEL_EVENT_START:
+    case NS_WHEEL_WHEEL:
+    case NS_WHEEL_START:
+    case NS_WHEEL_STOP:
       // Disable touch caret while key/wheel event is received.
-      TOUCHCARET_LOG("Receive key/wheel event");
+      TOUCHCARET_LOG("Receive key/wheel event %d", aEvent->message);
       SetVisibility(false);
       break;
     default: