Rename ApplicationDelegate to ShellClient

mojo/shell/public/cpp/shell_client.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_SHELL_PUBLIC_CPP_APPLICATION_DELEGATE_H_
-#define MOJO_SHELL_PUBLIC_CPP_APPLICATION_DELEGATE_H_
+#ifndef MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_
+#define MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_
 
 #include <stdint.h>
 #include <string>
 
 #include "mojo/public/cpp/system/macros.h"
+#include "mojo/shell/public/cpp/connection.h"
 
 namespace mojo {
 
-class ApplicationConnection;
-class ApplicationImpl;
 class Shell;
 
 // An abstract class that the application may subclass to control various
 // behaviors of ApplicationImpl.
-class ApplicationDelegate {
+class ShellClient {
  public:
-  ApplicationDelegate();
-  virtual ~ApplicationDelegate();
+  ShellClient();
+  virtual ~ShellClient();
 
+  // Called once a bidirectional connection with the shell has been established.
+  // |url| is the URL used to start the application. |id| is a unique identifier
+  // the shell uses to identify this specific instance of the application.
   // Called exactly once before any other method.
-  virtual void Initialize(Shell* app, const std::string& url, uint32_t id);
+  virtual void Initialize(Shell* shell, const std::string& url, uint32_t id);
 
   // Override this method to configure what services a connection supports when
   // being connected to from an app.
-  // Return false to reject the connection entirely.
-  virtual bool AcceptConnection(ApplicationConnection* connection);
+  // Return false to reject the connection entirely. The default implementation
+  // returns false.
+  virtual bool AcceptConnection(Connection* connection);
 
   // Called when the shell connection has a connection error.
   //
   // Return true to shutdown the application. Return false to skip shutting
   // down the connection, but user is then required to call
-  // ApplicationImpl::QuitNow() when done.
+  // ApplicationImpl::QuitNow() when done. Default implementation returns true.
   virtual bool ShellConnectionLost();
 
   // Called before ApplicationImpl::Terminate(). After returning from this call
   // the delegate can no longer rely on the main run loop still running.
   virtual void Quit();
 
  private:
-  MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationDelegate);
+  MOJO_DISALLOW_COPY_AND_ASSIGN(ShellClient);
 };
 
 }  // namespace mojo
 
-#endif  // MOJO_SHELL_PUBLIC_CPP_APPLICATION_DELEGATE_H_
+#endif  // MOJO_SHELL_PUBLIC_CPP_SHELL_CLIENT_H_