Bug 1446668: Remove more dead code after bug 749981. r=smaug

Reviewers: smaug

Bug #: 1446668

Differential Revision: https://phabricator.services.mozilla.com/D757

MozReview-Commit-ID: CWv0odRUxgK

dom/base/FragmentOrElement.cpp

@@ -1522,14 +1522,6 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_END
 
 NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(FragmentOrElement)
 
-void
-FragmentOrElement::MarkUserData(void* aObject, nsAtom* aKey, void* aChild,
-                               void* aData)
-{
-  uint32_t* gen = static_cast<uint32_t*>(aData);
-  xpc_MarkInCCGeneration(static_cast<nsISupports*>(aChild), *gen);
-}
-
 void
 FragmentOrElement::MarkNodeChildren(nsINode* aNode)
 {

dom/base/FragmentOrElement.h

@@ -207,8 +207,6 @@ public:
   static void RemoveBlackMarkedNode(nsINode* aNode);
   static void MarkNodeChildren(nsINode* aNode);
   static void InitCCCallbacks();
-  static void MarkUserData(void* aObject, nsAtom* aKey, void* aChild,
-                           void *aData);
 
   /**
    * Is the HTML local name a void element?

js/xpconnect/src/nsXPConnect.cpp

@@ -400,21 +400,6 @@ nsXPConnect::GetInfoForIID(const nsIID * aIID, nsIInterfaceInfo** info)
   return XPTInterfaceInfoManager::GetSingleton()->GetInfoForIID(aIID, info);
 }
 
-void
-xpc_MarkInCCGeneration(nsISupports* aVariant, uint32_t aGeneration)
-{
-    nsCOMPtr<XPCVariant> variant = do_QueryInterface(aVariant);
-    if (variant) {
-        variant->SetCCGeneration(aGeneration);
-        variant->GetJSVal(); // Unmarks gray JSObject.
-        XPCVariant* weak = variant.get();
-        variant = nullptr;
-        if (weak->IsPurple()) {
-          weak->RemovePurple();
-        }
-    }
-}
-
 void
 xpc_TryUnmarkWrappedGrayObject(nsISupports* aWrappedJS)
 {

js/xpconnect/src/xpcpublic.h

@@ -226,11 +226,6 @@ xpc_FastGetCachedWrapper(JSContext* cx, nsWrapperCache* cache, JS::MutableHandle
     return nullptr;
 }
 
-// If aVariant is an XPCVariant, this marks the object to be in aGeneration.
-// This also unmarks the gray JSObject.
-extern void
-xpc_MarkInCCGeneration(nsISupports* aVariant, uint32_t aGeneration);
-
 // If aWrappedJS is a JS wrapper, unmark its JSObject.
 extern void
 xpc_TryUnmarkWrappedGrayObject(nsISupports* aWrappedJS);