patch 0.7.0

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# HG changeset patch
# Parent 13ba6cbdb304cd251fbc22466cadb21019ee817f
# User Bill McCloskey <wmccloskey@mozilla.com>

diff --git a/content/base/src/nsContentUtils.cpp b/content/base/src/nsContentUtils.cpp
--- a/content/base/src/nsContentUtils.cpp
+++ b/content/base/src/nsContentUtils.cpp
@@ -6369,17 +6369,17 @@ public:
                                     nsCycleCollectionParticipant* helper)
   {
   }
 
   NS_IMETHOD_(void) NoteNextEdgeName(const char* name)
   {
   }
 
-  NS_IMETHOD_(void) NoteWeakMapping(void* map, void* key, void* val)
+  NS_IMETHOD_(void) NoteWeakMapping(void* map, void* key, void* kdelegate, void* val)
   {
   }
 
   bool mFound;
 
 private:
   void* mWrapper;
 };
diff --git a/js/src/jsfriendapi.cpp b/js/src/jsfriendapi.cpp
--- a/js/src/jsfriendapi.cpp
+++ b/js/src/jsfriendapi.cpp
@@ -527,16 +527,24 @@ js::VisitGrayWrapperTargets(JSCompartmen
 {
     for (WrapperMap::Enum e(comp->crossCompartmentWrappers); !e.empty(); e.popFront()) {
         gc::Cell *thing = e.front().key.wrapped;
         if (thing->isMarked(gc::GRAY))
             callback(closure, thing);
     }
 }
 
+JS_FRIEND_API(JSObject *)
+js::GetWeakmapKeyDelegate(JSObject *key)
+{
+    if (JSWeakmapKeyDelegateOp op = key->getClass()->ext.weakmapKeyDelegateOp)
+        return op(key);
+    return NULL;
+}
+
 JS_FRIEND_API(void)
 JS_SetAccumulateTelemetryCallback(JSRuntime *rt, JSAccumulateTelemetryDataCallback callback)
 {
     rt->telemetryCallback = callback;
 }
 
 JS_FRIEND_API(JSObject *)