Add mojo::Binding<Interface> for more flexible pipe<->impl binding

mojo/services/test_service/test_service_impl.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 MOJO_SERVICES_TEST_SERVICE_TEST_SERVICE_IMPL_H_
 #define MOJO_SERVICES_TEST_SERVICE_TEST_SERVICE_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "mojo/services/test_service/test_service.mojom.h"
 
 namespace mojo {
 class ApplicationConnection;
 namespace test {
 
 class TestRequestTrackerClientImpl;
 class TestServiceApplication;
 
 class TestServiceImpl : public InterfaceImpl<TestService> {
  public:
   TestServiceImpl(ApplicationConnection* connection,
                   TestServiceApplication* application);
   ~TestServiceImpl() override;
 
   // |TestService| methods:
-  void OnConnectionEstablished() override;
   void OnConnectionError() override;
   void Ping(const mojo::Callback<void()>& callback) override;
   void ConnectToAppAndGetTime(
       const mojo::String& app_url,
       const mojo::Callback<void(int64_t)>& callback) override;
   void StartTrackingRequests(const mojo::Callback<void()>& callback) override;
 
  private:
   TestServiceApplication* const application_;
   ApplicationConnection* const connection_;
   TestTimeServicePtr time_service_;
   scoped_ptr<TestRequestTrackerClientImpl> tracking_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(TestServiceImpl);
 };
 
 }  // namespace test
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_TEST_SERVICE_TEST_SERVICE_IMPL_H_