[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/html/FileInputType.h

Index: Source/core/html/FileInputType.h
diff --git a/Source/core/html/FileInputType.h b/Source/core/html/FileInputType.h
index 104fc84efbf8a6ec6b7797aca1560345db92a04f..98bb1d82e348711b8ee89961801fd47036847b4b 100644
--- a/Source/core/html/FileInputType.h
+++ b/Source/core/html/FileInputType.h
@@ -44,11 +44,11 @@ class FileList;
 
 class FileInputType : public BaseClickableWithKeyInputType, private FileChooserClient, private FileIconLoaderClient {
 public:
-    static PassOwnPtr<InputType> create(HTMLInputElement*);
+    static PassOwnPtr<InputType> create(Handle<HTMLInputElement>);
     static Vector<FileChooserFileInfo> filesFromFormControlState(const FormControlState&);
 
 private:
-    FileInputType(HTMLInputElement*);
+    FileInputType(Handle<HTMLInputElement>);
     virtual const AtomicString& formControlType() const OVERRIDE;
     virtual FormControlState saveFormControlState() const OVERRIDE;
     virtual void restoreFormControlState(const FormControlState&) OVERRIDE;