Bug 992521 - Part 3: Make script run when not in document, but contained by a ShadowRoot with a host in document. r=smaug

content/base/src/nsScriptElement.cpp

@@ -114,8 +114,8 @@ nsScriptElement::MaybeProcessScript()
   NS_ASSERTION(cont->DebugGetSlots()->mMutationObservers.Contains(this),
                "You forgot to add self as observer");
 
-  if (mAlreadyStarted || !mDoneAddingChildren || !cont->IsInDoc() ||
-      mMalformed || !HasScriptContent()) {
+  if (mAlreadyStarted || !mDoneAddingChildren ||
+      !cont->GetCrossShadowCurrentDoc() || mMalformed || !HasScriptContent()) {
     return false;
   }
 

content/html/content/src/HTMLScriptElement.cpp

@@ -62,7 +62,7 @@ HTMLScriptElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                                                  aCompileEventHandlers);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  if (aDocument) {
+  if (GetCrossShadowCurrentDoc()) {
     MaybeProcessScript();
   }