Fix PointerEventFactoryTest unit tests non-Oilpan following r377576.

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

Index: third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp
diff --git a/third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp b/third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp
index 47396cef2a386522dabf7b27293ccf3074489ea5..2a1bf4ddb9f6fe87b47e37cc86f635fa2d88a790 100644
--- a/third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp
+++ b/third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp
@@ -86,9 +86,10 @@ PassRefPtrWillBeRawPtr<PointerEvent> PointerEventFactoryTest::createAndCheckTouc
 }
 
 void PointerEventFactoryTest::cloneAndCheckPointerEvent(
-    PassRefPtrWillBeRawPtr<PointerEvent> pointerEvent,
+    PassRefPtrWillBeRawPtr<PointerEvent> prpPointerEvent,
     const AtomicString& type)
 {
+    RefPtrWillBeRawPtr<PointerEvent> pointerEvent = prpPointerEvent;
     RefPtrWillBeRawPtr<PointerEvent> clonePointerEvent =
         m_pointerEventFactory.create(pointerEvent, type, nullptr);
     EXPECT_EQ(clonePointerEvent->pointerType(), pointerEvent->pointerType());