Bug 1242666 - Support apple-touch-icon-precomposed too r=mfinkle

--HG--
extra : commitid : 3AWRHIKLPJ1

mobile/android/chrome/content/browser.js

@@ -4123,7 +4123,8 @@ Tab.prototype = {
         let list = this.sanitizeRelString(target.rel);
         if (list.indexOf("[icon]") != -1) {
           jsonMessage = this.makeFaviconMessage(target);
-        } else if (list.indexOf("[apple-touch-icon]") != -1) {
+        } else if (list.indexOf("[apple-touch-icon]") != -1 ||
+            list.indexOf("[apple-touch-icon-precomposed]") != -1) {
           let message = this.makeFaviconMessage(target);
           this.addMetadata("touchIconList", message.href, message.size);
         } else if (list.indexOf("[alternate]") != -1 && aEvent.type == "DOMLinkAdded") {