Oilpan: Prepare to move form control ua shadow elements to Oilpan heap.

Source/core/html/forms/TextFieldInputType.h

Index: Source/core/html/forms/TextFieldInputType.h
diff --git a/Source/core/html/forms/TextFieldInputType.h b/Source/core/html/forms/TextFieldInputType.h
index f2272db1244b8a40da2a6b8ad009b28b481854c0..0eb1fda2d4c9eea5e1180696753a1fb72a288eac 100644
--- a/Source/core/html/forms/TextFieldInputType.h
+++ b/Source/core/html/forms/TextFieldInputType.h
@@ -41,6 +41,7 @@ class FormDataList;
 // The class represents types of which UI contain text fields.
 // It supports not only the types for BaseTextInputType but also type=number.
 class TextFieldInputType : public InputType, protected SpinButtonElement::SpinButtonOwner {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(TextFieldInputType);

[Mads Ager (chromium), 2014/05/08 08:22:39]

You should implement trace here to make sure that you get the SpinButtonOwner
traced:

SpinButtonElement::SpinButtonOwner::trace(visitor);
InputType::trace(visitor);

[haraken, 2014/05/08 08:26:11]

Nice catch. Can this be detected by the plugin?

[keishi, 2014/05/08 09:28:15]

Done.

Added SpinButtonOwner::trace, TextFieldInputType::trace and
BaseMultipleFieldsDateAndTimeInputType::trace

 protected:
     TextFieldInputType(HTMLInputElement&);
     virtual ~TextFieldInputType();