fix bug 369828 - html/svg:style sheets don't work in XUL documents(the fix is to special-case these elements in nsXULDocument::ResumeWalkand manually call UpdateStylesheet on them after the element and its subtreeis fully constructed and inserted into the document)r=bz, sr=peterv

content/xul/document/src/nsXULDocument.cpp

@@ -2868,6 +2868,19 @@ nsXULDocument::ResumeWalk()
                     // resolved.)
                     if (mState == eState_Master) {
                         AddElementToDocumentPost(element);
+
+                        if (element->NodeInfo()->Equals(nsGkAtoms::style,
+                                                        kNameSpaceID_XHTML) ||
+                            element->NodeInfo()->Equals(nsGkAtoms::style,
+                                                        kNameSpaceID_SVG)) {
+                            // XXX sucks that we have to do this -
+                            // see bug 370111
+                            nsCOMPtr<nsIStyleSheetLinkingElement> ssle =
+                                do_QueryInterface(element);
+                            NS_ASSERTION(ssle, "<html:style> doesn't implement "
+                                               "nsIStyleSheetLinkingElement?");
+                            ssle->UpdateStyleSheet(nsnull, nsnull);
+                        }
                     }
 
 #ifdef MOZ_XTF

layout/reftests/xul-document-load/readme.txt

@@ -59,3 +59,5 @@ test020: Same as #018 for <?xml-stylesheet ?>
 
 test021: (bug 363419) Non-XUL elements directly underneath <overlay> should
          be merged correctly into the base document.
+
+test022: (bug 369828) <html:style> works in XUL documents

layout/reftests/xul-document-load/reftest.list

@@ -19,3 +19,4 @@
 == test019.xul reference-green-window.xul
 == test020.xul reference-green-window.xul
 == test021.xul reference-green-window.xul
+== test022.xul reference-green-window.xul

layout/reftests/xul-document-load/test022.xul

@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<window title="Testcase for bug 369828 - html:style doesn't work in XUL documents"
+  xmlns:html="http://www.w3.org/1999/xhtml"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+  style="background-color: red">
+
+<html:style type="text/css">
+  window {
+    background-color: green !important;
+  }
+</html:style>
+
+</window>