Added VMLibraryHooks setup for Dartium to support resolvePackageUri.

sdk/lib/_blink/dartium/_blink_dartium.dart

Index: sdk/lib/_blink/dartium/_blink_dartium.dart
diff --git a/sdk/lib/_blink/dartium/_blink_dartium.dart b/sdk/lib/_blink/dartium/_blink_dartium.dart
index bb8082720295060a9f7760450c8e06cfccb05766..a0fce4b249cd5e202bed23b9540030c09f86b051 100644
--- a/sdk/lib/_blink/dartium/_blink_dartium.dart
+++ b/sdk/lib/_blink/dartium/_blink_dartium.dart
@@ -9,6 +9,7 @@ library dart.dom._blink;
 
 import 'dart:js' as js;
 import 'dart:html' show DomException;
+import 'dart:_internal' as internal;
 
 // This is a place to put custom renames if we need them.
 final resolverMap = {
@@ -23275,6 +23276,12 @@ class Blink_Utils {
 
   static register(document, tag, customType, extendsTagName) native "Utils_register";
 
+  // Below code sets up VMLibraryHooks for resolvePackageUri.
+  static Uri resolvePackageUri(Uri packageUri) native "Utils_resolvePackageUri";
+  static void _setupHooks() {
+    internal.VMLibraryHooks.resolvePackageUriFuture = resolvePackageUri;
+  }
+
   // Defines an interceptor if there is an appropriate JavaScript prototype to define it on.
   // In any case, returns a typed JS wrapper compatibile with dart:html and the new
   // typed JS Interop.