Make sure we have a pres context. b=453278 r+sr=bzbarsky

content/xml/content/src/nsXMLElement.cpp

@@ -188,7 +188,9 @@ nsXMLElement::MaybeTriggerAutoLink(nsIDocShell *aShell)
   nsresult rv = DocShellToPresContext(aShell, getter_AddRefs(pc));
   NS_ENSURE_SUCCESS(rv, rv);
 
-  nsContentUtils::TriggerLink(this, pc, absURI, target, PR_TRUE, PR_FALSE);
+  if (pc) {
+    nsContentUtils::TriggerLink(this, pc, absURI, target, PR_TRUE, PR_FALSE);
+  }
 
   return special_rv; // return GetLinkTargetAndAutoType's special rv!
 }