Oilpan: Remove guardRef and guardDeref from TreeScope.

Source/core/html/imports/HTMLImportChild.h

Index: Source/core/html/imports/HTMLImportChild.h
diff --git a/Source/core/html/imports/HTMLImportChild.h b/Source/core/html/imports/HTMLImportChild.h
index f87d9feebf0dd9299160db02459aece60cd77f53..776ca59621c956d439f0b0822df3fd53c7454730 100644
--- a/Source/core/html/imports/HTMLImportChild.h
+++ b/Source/core/html/imports/HTMLImportChild.h
@@ -34,6 +34,7 @@
 #include "core/fetch/RawResource.h"
 #include "core/fetch/ResourceOwner.h"
 #include "core/html/imports/HTMLImport.h"
+#include "heap/Handle.h"

[wibling-chromium, 2014/04/24 14:43:06]

NIT: Please change to "platform/heap/Handle.h" since the redirect will is going
away ASAP.

[Mads Ager (chromium), 2014/04/25 10:58:25]

Will merge and fix. Thanks.

 #include "platform/weborigin/KURL.h"
 #include "wtf/Vector.h"
 
@@ -96,7 +97,11 @@ private:
     void shareLoader(HTMLImportChild*);
     void ensureLoader();
 
+#if ENABLE(OILPAN)
+    Persistent<Document> m_master;
+#else
     Document& m_master;
+#endif
     KURL m_url;
     CustomElementMicrotaskImportStep* m_customElementMicrotaskStep;
     HTMLImportLoader* m_loader;