Fixing build bustage on linux, added a missing .get() on a nsCOMPtr. a=leaf@mozilla.org

content/xml/document/src/nsXMLContentSink.cpp

@@ -801,7 +801,7 @@ nsXMLContentSink::CloseContainer(const nsIParserNode& aNode)
   if (popContent) {
     content = getter_AddRefs(PopContent());
     if (content) {
-      if (mDocElement == content) {
+      if (mDocElement == content.get()) {
         mState = eXMLContentSinkState_InEpilog;
       }
     }

layout/xml/document/src/nsXMLContentSink.cpp

@@ -801,7 +801,7 @@ nsXMLContentSink::CloseContainer(const nsIParserNode& aNode)
   if (popContent) {
     content = getter_AddRefs(PopContent());
     if (content) {
-      if (mDocElement == content) {
+      if (mDocElement == content.get()) {
         mState = eXMLContentSinkState_InEpilog;
       }
     }