Oilpan: move BaseChooserOnlyDateAndTimeInputType to the heap.

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

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef BaseChooserOnlyDateAndTimeInputType_h
 #define BaseChooserOnlyDateAndTimeInputType_h
 
 #if !ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 #include "core/html/forms/BaseClickableWithKeyInputType.h"
 #include "core/html/forms/BaseDateAndTimeInputType.h"
 #include "core/html/forms/DateTimeChooser.h"
 #include "core/html/forms/DateTimeChooserClient.h"
+#include "platform/heap/Handle.h"
+
+// Not very nice, but the derived {Date,Month,DateTimeLocal,...}InputType will
+// have to conditionally be a GC mixin - conditional on !ENABLE(INPUT_MULTIPLE_FIELDS_UI).
+//
+// Provide a pair of ENABLE(INPUT_MULTIPLE_FIELDS_UI)-dependent macros that expand into
+// the GC mixin and trace declarations required.
+#define WILL_BE_USING_DATETIMERCHOOSERCLIENT_GC_MIXIN(T) WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(T)
+#define DEFINE_BASEDATEANDTIMEINPUTTYPE_VIRTUAL_TRACE(T) DEFINE_INLINE_VIRTUAL_TRACE() { T::trace(visitor); }
 
 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();
 
     // InputType functions:
     void createShadowSubtree() override;
     void closePopupView() override;
     void setValue(const String&, bool valueChanged, TextFieldEventBehavior) override;
     void handleDOMActivateEvent(Event*) override;
     void handleKeydownEvent(KeyboardEvent*) override;
     void handleKeypressEvent(KeyboardEvent*) override;
     void handleKeyupEvent(KeyboardEvent*) override;
     void accessKeyAction(bool sendMouseEvents) override;
     void updateView() override;
 
     // DateTimeChooserClient functions:
     Element& ownerElement() const override;
     void didChooseValue(const String&) override;
     void didChooseValue(double) override;
     void didEndChooser() override;
 
-    RefPtr<DateTimeChooser> m_dateTimeChooser;
+    RefPtrWillBeMember<DateTimeChooser> m_dateTimeChooser;
 };
 
-}
-#endif
-#endif
+} // namespace blink
+
+#else
+#define WILL_BE_USING_DATETIMERCHOOSERCLIENT_GC_MIXIN(T)
+#define DEFINE_BASEDATEANDTIMEINPUTTYPE_VIRTUAL_TRACE(T)
+
+#endif // ENABLE(INPUT_MULTIPLE_FIELDS_UI)
+
+#endif // BaseChooserOnlyDateAndTimeInputType_h