Add an ApplicationConnector.Duplicate().

shell/application_manager/shell_impl.h

 // Copyright 2015 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 SHELL_APPLICATION_MANAGER_SHELL_IMPL_H_
 #define SHELL_APPLICATION_MANAGER_SHELL_IMPL_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "mojo/common/binding_set.h"
@@ skipping 27 matching lines @@
   void ConnectToClient(const GURL& requested_url,
                        const GURL& requestor_url,
                        mojo::InterfaceRequest<mojo::ServiceProvider> services,
                        mojo::ServiceProviderPtr exposed_services);
 
   mojo::Application* application() { return application_.get(); }
   const Identity& identity() const { return identity_; }
   base::Closure on_application_end() const { return on_application_end_; }
 
  private:
+  // This is a per-|ShellImpl| singleton.
   class ApplicationConnectorImpl : public mojo::ApplicationConnector {
    public:
-    explicit ApplicationConnectorImpl(mojo::Shell* shell) : shell_(shell) {}
-    ~ApplicationConnectorImpl() override {}
+    explicit ApplicationConnectorImpl(mojo::Shell* shell);
+    ~ApplicationConnectorImpl() override;
 
     void ConnectToApplication(
         const mojo::String& app_url,
         mojo::InterfaceRequest<mojo::ServiceProvider> services,
-        mojo::ServiceProviderPtr exposed_services) override {
-      shell_->ConnectToApplication(app_url, services.Pass(),
-                                   exposed_services.Pass());
-    }
+        mojo::ServiceProviderPtr exposed_services) override;
+    void Duplicate(mojo::InterfaceRequest<mojo::ApplicationConnector>
+                       application_connector_request) override;
 
    private:
     mojo::Shell* const shell_;
+    mojo::BindingSet<mojo::ApplicationConnector> bindings_;
+
     DISALLOW_COPY_AND_ASSIGN(ApplicationConnectorImpl);
   };
 
   // mojo::Shell implementation:
   void ConnectToApplication(
       const mojo::String& app_url,
       mojo::InterfaceRequest<mojo::ServiceProvider> services,
       mojo::ServiceProviderPtr exposed_services) override;
   void CreateApplicationConnector(
       mojo::InterfaceRequest<mojo::ApplicationConnector>
           application_connector_request) override;
 
   ApplicationManager* const manager_;
   const Identity identity_;
   base::Closure on_application_end_;
   mojo::ApplicationPtr application_;
   mojo::Binding<mojo::Shell> binding_;
 
   ApplicationConnectorImpl application_connector_impl_;
-  mojo::BindingSet<mojo::ApplicationConnector> application_connectors_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellImpl);
 };
 
 }  // namespace shell
 
 #endif  // SHELL_APPLICATION_MANAGER_SHELL_IMPL_H_