Mojo: Replace RemotePtr with InterfacePtr and InterfaceImpl

content/browser/mojo/mojo_application_host.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 CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_
 #define CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_
 
 #include "base/process/process_handle.h"
 #include "mojo/common/channel_init.h"
 #include "mojo/embedder/scoped_platform_handle.h"
-#include "mojo/public/cpp/bindings/remote_ptr.h"
 #include "mojo/public/interfaces/shell/shell.mojom.h"
 
 namespace IPC {
 class Sender;
 }
 
 namespace content {
 
 // MojoApplicationHost represents the code needed on the browser side to setup
 // a child process as a Mojo application via Chrome IPC. The child process
 // should use MojoApplication to handle messages generated by an instance of
 // MojoApplicationHost. MojoApplicationHost makes the mojo::ShellClient
 // interface available so that child-provided services can be invoked.
 class MojoApplicationHost {
  public:
   MojoApplicationHost();
-  ~MojoApplicationHost();
+  virtual ~MojoApplicationHost();
 
   // Two-phase initialization:
   //  1- Init makes the shell_client() available synchronously.
   //  2- Activate establishes the actual connection to the peer process.
   bool Init();
   bool Activate(IPC::Sender* sender, base::ProcessHandle process_handle);
 
   bool did_activate() const { return did_activate_; }
 
-  mojo::ShellClient* shell_client() { return shell_client_.get(); }
+  mojo::ShellClient* shell_client() {
+    DCHECK(shell_.get());
+    return shell_->client();
+  }
 
  private:
+  class ShellImpl : public mojo::InterfaceImpl<mojo::Shell> {
+   public:
+    ShellImpl() : client_(NULL) {}
+    mojo::ShellClient* client() { return client_; }
+
+    virtual void OnConnectionError() OVERRIDE {
+      // TODO(darin): How should we handle this error?
+    }
+
+    // mojo::Shell methods:
+    virtual void SetClient(mojo::ShellClient* client) OVERRIDE;
+    virtual void Connect(const mojo::String& url,
+                         mojo::ScopedMessagePipeHandle handle) OVERRIDE;
+   private:
+    mojo::ShellClient* client_;
+  };
+
   mojo::common::ChannelInit channel_init_;
   mojo::embedder::ScopedPlatformHandle client_handle_;
-  mojo::RemotePtr<mojo::ShellClient> shell_client_;
+
+  scoped_ptr<ShellImpl> shell_;
+
   bool did_activate_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoApplicationHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MOJO_MOJO_APPLICATION_HOST_H_