Add a Javascript wrapper for InterfaceRegistry.

services/shell/public/cpp/interface_registry.h

 // Copyright 2016 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.
 
 #ifndef SERVICES_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_
 #define SERVICES_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_
 
 #include <memory>
 #include <queue>
 #include <set>
@@ skipping 43 matching lines @@
    public:
     explicit TestApi(InterfaceRegistry* registry) : registry_(registry) {}
     ~TestApi() {}
 
     void SetInterfaceBinderForName(InterfaceBinder* binder,
                                    const std::string& interface_name) {
       registry_->SetInterfaceBinderForName(
           base::WrapUnique(binder), interface_name);
     }
 
+    template <typename Interface>
+    void GetLocalInterface(mojo::InterfaceRequest<Interface> request) {
+      GetLocalInterface(Interface::Name_, request.PassMessagePipe());
+    }
+
+    void GetLocalInterface(const std::string& name,
+                           mojo::ScopedMessagePipeHandle handle) {
+      registry_->GetInterface(name, std::move(handle));
+    }
+
    private:
     InterfaceRegistry* registry_;
     DISALLOW_COPY_AND_ASSIGN(TestApi);
   };
 
   // Construct an InterfaceRegistry with no filtering rules applied.
   InterfaceRegistry();
 
   // Construct an InterfaceRegistry with filtering rules as specified in
   // |capability_request| applied.
@@ skipping 93 matching lines @@
       pending_interface_requests_;
 
   base::WeakPtrFactory<InterfaceRegistry> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfaceRegistry);
 };
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_