Stocks.apk should have icons when run offline

sky/sdk/lib/mojo/asset_bundle.dart

Index: sky/sdk/lib/mojo/asset_bundle.dart
diff --git a/sky/sdk/lib/mojo/asset_bundle.dart b/sky/sdk/lib/mojo/asset_bundle.dart
index 7aa49c48977ce17a7ad626311d4ec14fbaf0ba6c..7d7059dae620140b63ab1237da375a218f7c7373 100644
--- a/sky/sdk/lib/mojo/asset_bundle.dart
+++ b/sky/sdk/lib/mojo/asset_bundle.dart
@@ -4,6 +4,7 @@
 
 import 'dart:async';
 import 'dart:sky' as sky;
+import "dart:sky.internals" as internals;
 
 import 'package:mojo/core.dart' as core;
 import 'package:mojom/mojo/asset_bundle/asset_bundle.mojom.dart';
@@ -66,3 +67,15 @@ class MojoAssetBundle extends AssetBundle {
     });
   }
 }
+
+AssetBundle _initRootBundle() {
+  try {
+    AssetBundleProxy bundle = new AssetBundleProxy.fromHandle(
+        new core.MojoHandle(internals.takeRootBundleHandle()));
+    return new MojoAssetBundle(bundle);
+  } catch (e) {
+    return null;
+  }
+}
+
+final AssetBundle rootBundle = _initRootBundle();