gesture recognizer: Remove the touch-event queue.

ui/base/gestures/gesture_sequence.cc

Index: ui/base/gestures/gesture_sequence.cc
diff --git a/ui/base/gestures/gesture_sequence.cc b/ui/base/gestures/gesture_sequence.cc
index 7105aa9f144400d7bf4c16b65f53354cd1c9fb2f..93d439f2de979abd29fc17e1727b24861e517ec0 100644
--- a/ui/base/gestures/gesture_sequence.cc
+++ b/ui/base/gestures/gesture_sequence.cc
@@ -310,7 +310,7 @@ GestureSequence::Gestures* GestureSequence::ProcessTouchEventForGesture(
     EventResult result) {
   StopLongPressTimerIfRequired(event);
   last_touch_location_ = event.location();
-  if (result & ER_ASYNC)
+  if (result & ER_CONSUMED)
     return NULL;
 
   // Set a limit on the number of simultaneous touches in a gesture.
@@ -350,7 +350,6 @@ GestureSequence::Gestures* GestureSequence::ProcessTouchEventForGesture(
   if (event.type() == ui::ET_TOUCH_PRESSED)
     AppendBeginGestureEvent(point, gestures.get());
 
-  CHECK_NE(ER_ASYNC, result);
   TouchStatusInternal status_internal = (result == ER_UNHANDLED) ?
       TSI_NOT_PROCESSED : TSI_PROCESSED;