Ignore TouchCancel ack dispositions

content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java
index 725667153c1f1684eed203533de3fbefb7591258..1f2ad9b688bb459f9d13748c0cc9875a0dd68065 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewGestureHandler.java
@@ -275,9 +275,10 @@ class ContentViewGestureHandler implements LongPressDelegate {
                     // The ACK to the original event is received after timeout.
                     // Inject a touchcancel event.
                     mPendingAckState = PENDING_ACK_CANCEL_EVENT;
-                    mMotionEventDelegate.sendTouchEvent(mEventTime + TOUCH_EVENT_TIMEOUT,
-                            TouchPoint.TOUCH_EVENT_TYPE_CANCEL, mTouchPoints);
+                    final TouchPoint[] touchPoints = mTouchPoints;
                     mTouchPoints = null;
+                    mMotionEventDelegate.sendTouchEvent(mEventTime + TOUCH_EVENT_TIMEOUT,
+                            TouchPoint.TOUCH_EVENT_TYPE_CANCEL, touchPoints);
                     return true;
                 case PENDING_ACK_CANCEL_EVENT:
                     TraceEvent.instant("TouchEventTimeout:ConfirmCancelEvent");