Add modifier flags to MotionEvent

ui/events/gesture_detection/motion_event.h

Index: ui/events/gesture_detection/motion_event.h
diff --git a/ui/events/gesture_detection/motion_event.h b/ui/events/gesture_detection/motion_event.h
index 0a8ace773585af35ba9d394edf2415ed93eb02a7..37a55c034fd747b519ec782ae63335bd64d25841 100644
--- a/ui/events/gesture_detection/motion_event.h
+++ b/ui/events/gesture_detection/motion_event.h
@@ -40,6 +40,15 @@ class GESTURE_DETECTION_EXPORT MotionEvent {
     BUTTON_FORWARD = 1 << 4,
   };
 
+  enum Modifiers {

[tdresser, 2014/09/11 20:51:18]

Where are these used?

[jdduke (slow), 2014/09/11 20:51:57]

Oops, they're not, I'll remove.

[jdduke (slow), 2014/09/11 20:57:17]

Done.

+    MODIFIER_SHIFT = 1 << 0,
+    MODIFIER_CONTROL = 1 << 1,
+    MODIFIER_ALT = 1 << 2,
+    MODIFIER_META = 1 << 3,
+    MODIFIER_CAPS_LOCK_ON = 1 << 4,
+    MODIFIER_NUM_LOCK_ON = 1 << 5
+  };
+
   // The implementer promises that |GetPointerId()| will never exceed
   // MAX_POINTER_ID.
   enum { MAX_POINTER_ID = 31, MAX_TOUCH_POINT_COUNT = 12 };
@@ -63,6 +72,7 @@ class GESTURE_DETECTION_EXPORT MotionEvent {
   virtual float GetPressure(size_t pointer_index) const = 0;
   virtual ToolType GetToolType(size_t pointer_index) const = 0;
   virtual int GetButtonState() const = 0;
+  virtual int GetFlags() const = 0;
   virtual base::TimeTicks GetEventTime() const = 0;
 
   // Optional historical data, default implementation provides an empty history.