Bug 1141122: supply a more canonical alternative to about:loopconversation in Loop conversation gUM prompts. r=florian

browser/modules/webrtcUI.jsm

@@ -167,8 +167,15 @@ function getHost(uri, href) {
   } catch (ex) {};
   if (!host) {
     if (uri && uri.scheme.toLowerCase() == "about") {
-      // For about URIs, just use the full spec, without any #hash parts
-      host = uri.specIgnoringRef;
+      // Special case-ing Loop/ Hello gUM requests.
+      if (uri.specIgnoringRef == "about:loopconversation") {
+        const kBundleURI = "chrome://browser/locale/loop/loop.properties";
+        let bundle = Services.strings.createBundle(kBundleURI);
+        host = bundle.GetStringFromName("clientShortname2");
+      } else {
+        // For other about URIs, just use the full spec, without any #hash parts.
+        host = uri.specIgnoringRef;
+      }
     } else {
       // This is unfortunate, but we should display *something*...
       const kBundleURI = "chrome://browser/locale/browser.properties";