Oilpan: Allocate all EventTarget derived types on the manged heap.

Source/core/html/ime/InputMethodContext.cpp

Index: Source/core/html/ime/InputMethodContext.cpp
diff --git a/Source/core/html/ime/InputMethodContext.cpp b/Source/core/html/ime/InputMethodContext.cpp
index 5f1e05395303ccff51cfd9b22c6901da68c14324..22724077086e574558cc9ef9daf4ec46c17aee08 100644
--- a/Source/core/html/ime/InputMethodContext.cpp
+++ b/Source/core/html/ime/InputMethodContext.cpp
@@ -37,9 +37,9 @@
 
 namespace WebCore {
 
-PassOwnPtr<InputMethodContext> InputMethodContext::create(HTMLElement* element)
+PassOwnPtrWillBeRawPtr<InputMethodContext> InputMethodContext::create(HTMLElement* element)
 {
-    return adoptPtr(new InputMethodContext(element));
+    return adoptPtrWillBeRefCountedGarbageCollected(new InputMethodContext(element));
 }
 
 InputMethodContext::InputMethodContext(HTMLElement* element)
@@ -185,4 +185,10 @@ void InputMethodContext::dispatchCandidateWindowHideEvent()
     dispatchEvent(Event::create(EventTypeNames::candidatewindowhide));
 }
 
+void InputMethodContext::trace(Visitor* visitor)
+{
+    visitor->trace(m_element);
+    EventTargetWithInlineData::trace(visitor);
+}
+
 } // namespace WebCore