Make sure PointerEvents's isPrimary set correctly for stylus

third_party/WebKit/Source/core/input/PointerEventManager.cpp

Index: third_party/WebKit/Source/core/input/PointerEventManager.cpp
diff --git a/third_party/WebKit/Source/core/input/PointerEventManager.cpp b/third_party/WebKit/Source/core/input/PointerEventManager.cpp
index 51501f37e039a2bf257d43cb321a63cd0b8543d6..c83ced3868f01ebe2a93000ddd3fed01843c184c 100644
--- a/third_party/WebKit/Source/core/input/PointerEventManager.cpp
+++ b/third_party/WebKit/Source/core/input/PointerEventManager.cpp
@@ -160,6 +160,9 @@ WebInputEventResult PointerEventManager::DispatchPointerEvent(
     }
   }
 
+  if (event_type == EventTypeNames::pointerleave)

[dtapuska, 2017/04/20 21:04:14]

Do you want to do this after the pointerleave is dispatched? So that if anything
queries states that it is correct while the leave is being dispatched?

[Navid Zolghadr, 2017/04/20 21:34:20]

I don't think doing this here is correct. This would remove the pointer
regardless of the type of the event. So if we send a pointerleave to an element
while mouse/pen/tuoch is leaving boundaries of an element inside the page they
will get removed from our data structures.

+    RemovePointer(pointer_event);
+
   if (!RuntimeEnabledFeatures::pointerEventEnabled())
     return WebInputEventResult::kNotHandled;
   if (!check_for_listener || target->HasEventListeners(event_type)) {