Make sure that the pressure is always 0 for pointerup events

ui/events/android/motion_event_android.cc

Index: ui/events/android/motion_event_android.cc
diff --git a/ui/events/android/motion_event_android.cc b/ui/events/android/motion_event_android.cc
index ee645bfc80e25d19e1596ce70994b404e7a33867..8e99aa3866b8d2e05e6d01c584f65f49eb460b4c 100644
--- a/ui/events/android/motion_event_android.cc
+++ b/ui/events/android/motion_event_android.cc
@@ -229,8 +229,8 @@ MotionEventAndroid::Action MotionEventAndroid::GetAction() const {
 }
 
 int MotionEventAndroid::GetActionIndex() const {
-  DCHECK(cached_action_ == ACTION_POINTER_UP ||
-         cached_action_ == ACTION_POINTER_DOWN)
+  DCHECK(cached_action_ == MotionEvent::ACTION_POINTER_UP ||
+         cached_action_ == MotionEvent::ACTION_POINTER_DOWN)
       << "Invalid action for GetActionIndex(): " << cached_action_;
   DCHECK_GE(cached_action_index_, 0);
   DCHECK_LT(cached_action_index_, static_cast<int>(cached_pointer_count_));
@@ -304,6 +304,8 @@ float MotionEventAndroid::GetPressure(size_t pointer_index) const {
   // accessed at most once per event instance).
   if (!event_.obj())
     return 0.f;
+  if (cached_action_ == MotionEvent::ACTION_UP)
+    return 0.f;
   return Java_MotionEvent_getPressureF_I(AttachCurrentThread(), event_,
                                          pointer_index);
 }