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

content/renderer/web_ui_runner.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/web_ui_runner.h"
 
+#include "content/public/common/service_registry.h"
+#include "content/public/renderer/render_frame.h"
+#include "content/renderer/mojo/service_registry_js_wrapper.h"
 #include "gin/modules/module_registry.h"
 #include "gin/per_context_data.h"
 #include "gin/public/context_holder.h"
 #include "mojo/bindings/js/core.h"
 #include "mojo/bindings/js/support.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebScriptSource.h"
 
 using v8::Context;
 using v8::HandleScope;
@@ skipping 23 matching lines @@
   gin::ModuleRegistry* registry =
       gin::ModuleRegistry::From(context_holder_->context());
   registry->AddBuiltinModule(context_holder_->isolate(),
                              mojo::js::Core::kModuleName,
                              mojo::js::Core::GetModule(
                                  context_holder_->isolate()));
   registry->AddBuiltinModule(context_holder_->isolate(),
                              mojo::js::Support::kModuleName,
                              mojo::js::Support::GetModule(
                                  context_holder_->isolate()));
+  registry->AddBuiltinModule(
+      context_holder_->isolate(),
+      ServiceRegistryJsWrapper::kModuleName,
+      ServiceRegistryJsWrapper::Create(
+          context_holder_->isolate(),
+          RenderFrame::FromWebFrame(frame_)->GetServiceRegistry()).ToV8());
 }
 
 void WebUIRunner::Run(const std::string& source,
                       const std::string& resource_name) {
   frame_->executeScript(
       blink::WebScriptSource(blink::WebString::fromUTF8(source)));
 }
 
 v8::Handle<v8::Value> WebUIRunner::Call(v8::Handle<v8::Function> function,
                                         v8::Handle<v8::Value> receiver,
                                         int argc,
                                         v8::Handle<v8::Value> argv[]) {
   return frame_->callFunctionEvenIfScriptDisabled(function, receiver, argc,
                                                   argv);
 }
 
 gin::ContextHolder* WebUIRunner::GetContextHolder() {
   return context_holder_;
 }
 
 }  // namespace content