Oilpan: move BaseChooserOnlyDateAndTimeInputType to the heap.

third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h

Index: third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h
diff --git a/third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h b/third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h
index ce37c91349de4742ecf73cd2068ecdcf30d6c4c0..5ba190f58c9de681fdbde7f3b55aef6471e0417f 100644
--- a/third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h
+++ b/third_party/WebKit/Source/core/html/forms/BaseChooserOnlyDateAndTimeInputType.h
@@ -31,14 +31,18 @@
 #include "core/html/forms/BaseDateAndTimeInputType.h"
 #include "core/html/forms/DateTimeChooser.h"
 #include "core/html/forms/DateTimeChooserClient.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
 class BaseChooserOnlyDateAndTimeInputType : public BaseDateAndTimeInputType, public DateTimeChooserClient {
+    WILL_BE_USING_PRE_FINALIZER(BaseChooserOnlyDateAndTimeInputType, closeDateTimeChooser);
 protected:
-    BaseChooserOnlyDateAndTimeInputType(HTMLInputElement& element) : BaseDateAndTimeInputType(element) { }
+    BaseChooserOnlyDateAndTimeInputType(HTMLInputElement&);
     ~BaseChooserOnlyDateAndTimeInputType() override;
 
+    DECLARE_VIRTUAL_TRACE();
+
 private:
     void closeDateTimeChooser();
 
@@ -59,7 +63,7 @@ private:
     void didChooseValue(double) override;
     void didEndChooser() override;
 
-    RefPtr<DateTimeChooser> m_dateTimeChooser;
+    RefPtrWillBeMember<DateTimeChooser> m_dateTimeChooser;
 };
 
 }