4 files changed, 18 insertions, 18 deletions
diff --git a/js/src/vm/ErrorObject.cpp b/js/src/vm/ErrorObject.cpp
index d8d29830b..271132801 100644
--- a/js/src/vm/ErrorObject.cpp
+++ b/js/src/vm/ErrorObject.cpp
@@ -29,11 +29,11 @@ js::ErrorObject::assignInitialShape(ExclusiveContext* cx, Handle<ErrorObject*> o
 {
     MOZ_ASSERT(obj->empty());
 
-    if (!obj->addDataProperty(cx, cx->names().fileName, FILENAME_SLOT, 0))
+    if (!NativeObject::addDataProperty(cx, obj, cx->names().fileName, FILENAME_SLOT, 0))
         return nullptr;
-    if (!obj->addDataProperty(cx, cx->names().lineNumber, LINENUMBER_SLOT, 0))
+    if (!NativeObject::addDataProperty(cx, obj, cx->names().lineNumber, LINENUMBER_SLOT, 0))
         return nullptr;
-    return obj->addDataProperty(cx, cx->names().columnNumber, COLUMNNUMBER_SLOT, 0);
+    return NativeObject::addDataProperty(cx, obj, cx->names().columnNumber, COLUMNNUMBER_SLOT, 0);
 }
 
 /* static */ bool
@@ -57,7 +57,7 @@ js::ErrorObject::init(JSContext* cx, Handle<ErrorObject*> obj, JSExnType type,
     // |new Error()|.
     RootedShape messageShape(cx);
     if (message) {
-        messageShape = obj->addDataProperty(cx, cx->names().message, MESSAGE_SLOT, 0);
+        messageShape = NativeObject::addDataProperty(cx, obj, cx->names().message, MESSAGE_SLOT, 0);
         if (!messageShape)
             return false;
         MOZ_ASSERT(messageShape->slot() == MESSAGE_SLOT);
diff --git a/js/src/vm/NativeObject.cpp b/js/src/vm/NativeObject.cpp
index a3f28653a..8940f93c4 100644
--- a/js/src/vm/NativeObject.cpp
+++ b/js/src/vm/NativeObject.cpp
@@ -996,23 +996,22 @@ NativeObject::freeSlot(ExclusiveContext* cx, uint32_t slot)
     setSlot(slot, UndefinedValue());
 }
 
-Shape*
-NativeObject::addDataProperty(ExclusiveContext* cx, jsid idArg, uint32_t slot, unsigned attrs)
+/* static */ Shape*
+NativeObject::addDataProperty(ExclusiveContext* cx, HandleNativeObject obj,
+                              jsid idArg, uint32_t slot, unsigned attrs)
 {
     MOZ_ASSERT(!(attrs & (JSPROP_GETTER | JSPROP_SETTER)));
-    RootedNativeObject self(cx, this);
     RootedId id(cx, idArg);
-    return addProperty(cx, self, id, nullptr, nullptr, slot, attrs, 0);
+    return addProperty(cx, obj, id, nullptr, nullptr, slot, attrs, 0);
 }
 
-Shape*
-NativeObject::addDataProperty(ExclusiveContext* cx, HandlePropertyName name,
-                              uint32_t slot, unsigned attrs)
+/* static */ Shape*
+NativeObject::addDataProperty(ExclusiveContext* cx, HandleNativeObject obj,
+                              HandlePropertyName name, uint32_t slot, unsigned attrs)
 {
     MOZ_ASSERT(!(attrs & (JSPROP_GETTER | JSPROP_SETTER)));
-    RootedNativeObject self(cx, this);
     RootedId id(cx, NameToId(name));
-    return addProperty(cx, self, id, nullptr, nullptr, slot, attrs, 0);
+    return addProperty(cx, obj, id, nullptr, nullptr, slot, attrs, 0);
 }
 
 template <AllowGC allowGC>
diff --git a/js/src/vm/NativeObject.h b/js/src/vm/NativeObject.h
index 832a701dd..7b240db34 100644
--- a/js/src/vm/NativeObject.h
+++ b/js/src/vm/NativeObject.h
@@ -741,10 +741,10 @@ class NativeObject : public ShapedObject
                               bool allowDictionary = true);
 
     /* Add a data property whose id is not yet in this scope. */
-    Shape* addDataProperty(ExclusiveContext* cx,
-                           jsid id_, uint32_t slot, unsigned attrs);
-    Shape* addDataProperty(ExclusiveContext* cx, HandlePropertyName name,
-                           uint32_t slot, unsigned attrs);
+    static Shape* addDataProperty(ExclusiveContext* cx, HandleNativeObject obj,
+                                  jsid id_, uint32_t slot, unsigned attrs);
+    static Shape* addDataProperty(ExclusiveContext* cx, HandleNativeObject obj,
+                                  HandlePropertyName name, uint32_t slot, unsigned attrs);
 
     /* Add or overwrite a property for id in this scope. */
     static Shape*
diff --git a/js/src/vm/RegExpObject.cpp b/js/src/vm/RegExpObject.cpp
index 6bd7de301..1ea67d0bd 100644
--- a/js/src/vm/RegExpObject.cpp
+++ b/js/src/vm/RegExpObject.cpp
@@ -300,7 +300,8 @@ RegExpObject::assignInitialShape(ExclusiveContext* cx, Handle<RegExpObject*> sel
     JS_STATIC_ASSERT(LAST_INDEX_SLOT == 0);
 
     /* The lastIndex property alone is writable but non-configurable. */
-    return self->addDataProperty(cx, cx->names().lastIndex, LAST_INDEX_SLOT, JSPROP_PERMANENT);
+    return NativeObject::addDataProperty(cx, self, cx->names().lastIndex, LAST_INDEX_SLOT,
+                                         JSPROP_PERMANENT);
 }
 
 void