[bindings] Support CallWith=ThisValue for generic interface methods

Source/core/frame/Location.h

Index: Source/core/frame/Location.h
diff --git a/Source/core/frame/Location.h b/Source/core/frame/Location.h
index 1ad7e3854359154db9728146485d3b8bfc679908..c530775daa6935f9500c4a97a4ed037d730ab71e 100644
--- a/Source/core/frame/Location.h
+++ b/Source/core/frame/Location.h
@@ -29,6 +29,7 @@
 #ifndef Location_h
 #define Location_h
 
+#include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/DOMStringList.h"
 #include "core/frame/DOMWindowProperty.h"
@@ -81,6 +82,8 @@ public:
     String hash() const;
     String origin() const;
 
+    ScriptValue valueOf(const ScriptValue& thisObject) { return thisObject; }
+
     PassRefPtrWillBeRawPtr<DOMStringList> ancestorOrigins() const;
 
     DECLARE_VIRTUAL_TRACE();