Added back a dropped event-type check.

third_party/WebKit/Source/core/events/EventTarget.cpp

Index: third_party/WebKit/Source/core/events/EventTarget.cpp
diff --git a/third_party/WebKit/Source/core/events/EventTarget.cpp b/third_party/WebKit/Source/core/events/EventTarget.cpp
index b1aea0a395f91288cb80b5bbb6060bf1daf922a9..19d5091f15ebdd4558136670d22ba78525c43cb5 100644
--- a/third_party/WebKit/Source/core/events/EventTarget.cpp
+++ b/third_party/WebKit/Source/core/events/EventTarget.cpp
@@ -579,7 +579,7 @@ bool EventTarget::fireEventListeners(Event* event, EventTargetData* d, EventList
     } else if (checkTypeThenUseCount(event, EventTypeNames::mousedown, UseCounter::MouseDownFired)) {
     } else if (checkTypeThenUseCount(event, EventTypeNames::pointerdown, UseCounter::PointerDownFired)) {
         if (LocalDOMWindow* executingWindow = this->executingWindow()) {
-            if (static_cast<PointerEvent*>(event)->pointerType() == "touch")
+            if (event->isPointerEvent() && static_cast<PointerEvent*>(event)->pointerType() == "touch")
                 UseCounter::count(executingWindow->document(), UseCounter::PointerDownFiredForTouch);
         }
     }