Add a Javascript wrapper around ServiceRegistry and expose it to WebUI.

content/test/data/web_ui_mojo.js

Index: content/test/data/web_ui_mojo.js
diff --git a/content/test/data/web_ui_mojo.js b/content/test/data/web_ui_mojo.js
index 086dc0041252bc901e67f7708a6d92436c7324b8..ab24f5ca76f96c456c1a7c025f196483ab2b55e3 100644
--- a/content/test/data/web_ui_mojo.js
+++ b/content/test/data/web_ui_mojo.js
@@ -5,7 +5,8 @@
 define('main', [
     'mojo/public/js/bindings/connection',
     'content/test/data/web_ui_test_mojo_bindings.mojom',
-], function (connection, bindings) {
+    'content/public/renderer/service_registry',
+], function (connection, bindings, serviceRegistry) {
   var retainedConnection;
 
   function RendererTargetTest(bindings) {
@@ -23,8 +24,10 @@ define('main', [
     this.bindings_.pingResponse();
   };
 
-  return function(handle) {
+  return function() {
     retainedConnection = new connection.Connection(
-        handle, RendererTargetTest, bindings.BrowserTargetProxy);
+        serviceRegistry.getInterface(bindings.BrowserTargetProxy.NAME_),

[darin (slow to review), 2014/06/21 04:44:16]

same nit about having to use NAME_ here. maybe there should just be a TODO in
this CL about figuring out a better solution.

[Sam McNally, 2014/06/24 08:45:01]

Done.

+        RendererTargetTest,
+        bindings.BrowserTargetProxy);
   };
 });