Add a status-type for a mouse-event triggered by a touch event.

views/view.h

Index: views/view.h
diff --git a/views/view.h b/views/view.h
index 6c0b95032912ac35024a5e3d61c3ce77f41f5873..529d2b50d36f599d550b9eb419661d5cac05381a 100644
--- a/views/view.h
+++ b/views/view.h
@@ -150,8 +150,11 @@ class View : public AcceleratorTarget {
     TOUCH_STATUS_CONTINUE,     // The touch event is part of a previously
                                // started touch sequence.
     TOUCH_STATUS_END,          // The touch event ended the touch sequence.
-    TOUCH_STATUS_CANCEL        // The touch event was cancelled, but didn't
+    TOUCH_STATUS_CANCEL,       // The touch event was cancelled, but didn't
                                // terminate the touch sequence.
+    TOUCH_STATUS_SYNTH_MOUSE   // The touch event was not processed, but a
+                               // synthetic mouse event generated from the
+                               // unused touch event was handled.
   };
 #endif