Add an extensions keep-alive client.

extensions/renderer/api_test_base.h

 // 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.
 
 #ifndef EXTENSIONS_RENDERER_API_TEST_BASE_H_
 #define EXTENSIONS_RENDERER_API_TEST_BASE_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 25 matching lines @@
       v8::Isolate* isolate) override;
 
   template <typename Interface>
   void AddService(const base::Callback<void(mojo::InterfaceRequest<Interface>)>
                       service_factory) {
     service_factories_.insert(std::make_pair(
         Interface::Name_,
         base::Bind(ForwardToServiceFactory<Interface>, service_factory)));
   }
 
+  // Ignore requests for the Interface service.
+  template <typename Interface>
+  void IgnoreServiceRequests() {
+    service_factories_.insert(std::make_pair(
+        Interface::Name_, base::Bind(&TestServiceProvider::IgnoreHandle)));
+  }
+
   static gin::WrapperInfo kWrapperInfo;
 
  private:
   TestServiceProvider();
 
   mojo::Handle ConnectToService(const std::string& service_name);
 
   template <typename Interface>
   static void ForwardToServiceFactory(
       const base::Callback<void(mojo::InterfaceRequest<Interface>)>
           service_factory,
       mojo::ScopedMessagePipeHandle handle) {
     service_factory.Run(mojo::MakeRequest<Interface>(handle.Pass()));
   }
+
+  static void IgnoreHandle(mojo::ScopedMessagePipeHandle handle);
+
   std::map<std::string, base::Callback<void(mojo::ScopedMessagePipeHandle)> >
       service_factories_;
 };
 
 // A base class for unit testing apps/extensions API custom bindings implemented
 // on Mojo services. To use:
 // 1. Register test Mojo service implementations on service_provider().
 // 2. Write JS tests in extensions/test/data/test_file.js.
 // 3. Write one C++ test function for each JS test containing
 //    RunTest("test_file.js", "testFunctionName").
@@ skipping 15 matching lines @@
   void RunPromisesAgain();
 
   base::MessageLoop message_loop_;
   TestServiceProvider* service_provider_;
   scoped_ptr<V8SchemaRegistry> v8_schema_registry_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_API_TEST_BASE_H_