Oilpan: move core/fileapi to oilpan's heap.

Source/core/html/forms/FileInputType.h

Index: Source/core/html/forms/FileInputType.h
diff --git a/Source/core/html/forms/FileInputType.h b/Source/core/html/forms/FileInputType.h
index a675ec9aa9fc4733b6e1729bd0d3d480c6dc264a..79b7709694a8a018bb3461b38b08f57ae8daf9f4 100644
--- a/Source/core/html/forms/FileInputType.h
+++ b/Source/core/html/forms/FileInputType.h
@@ -33,6 +33,7 @@
 #define FileInputType_h
 
 #include "core/html/forms/BaseClickableWithKeyInputType.h"
+#include "heap/Handle.h"
 #include "platform/FileChooser.h"
 #include "wtf/RefPtr.h"
 
@@ -58,7 +59,7 @@ private:
     virtual RenderObject* createRenderer(RenderStyle*) const OVERRIDE;
     virtual bool canSetStringValue() const OVERRIDE;
     virtual FileList* files() OVERRIDE;
-    virtual void setFiles(PassRefPtr<FileList>) OVERRIDE;
+    virtual void setFiles(PassRefPtrWillBeRawPtr<FileList>) OVERRIDE;
     virtual bool canSetValue(const String&) OVERRIDE;
     virtual bool getTypeSpecificValue(String&) OVERRIDE; // Checked first, before internal storage or the value attribute.
     virtual void setValue(const String&, bool valueChanged, TextFieldEventBehavior) OVERRIDE;
@@ -73,10 +74,10 @@ private:
     // FileChooserClient implementation.
     virtual void filesChosen(const Vector<FileChooserFileInfo>&) OVERRIDE;
 
-    PassRefPtr<FileList> createFileList(const Vector<FileChooserFileInfo>& files) const;
+    PassRefPtrWillBeRawPtr<FileList> createFileList(const Vector<FileChooserFileInfo>& files) const;
     void receiveDropForDirectoryUpload(const Vector<String>&);
 
-    RefPtr<FileList> m_fileList;
+    RefPtrWillBePersistent<FileList> m_fileList;

[sof, 2014/02/24 13:12:43]

This persistent isn't promptly released & GCed on shutdown. Unless there are
mechanisms to make that happen, this CL may have to wait until Node-based
objects have been moved to Oilpan.

[haraken, 2014/02/24 13:49:14]

Why isn't FileInputType destructed on shutdown? Who retains the FileInputType?

[sof, 2014/02/24 17:09:09]

I don't see FileInputType's dtor being called on any document having it. And
definitely not by the time the heap census is taken by assertEmpty().

[haraken, 2014/02/25 01:37:47]

Would you mind digging into the issue? This sounds like a real bug which we
should fix before doing the oilpanization.

 
     String m_droppedFileSystemId;
 };