ContentHandler -> ShellClientFactory

mojo/shell/shell_client_factory_connection.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 MOJO_SHELL_SHELL_CLIENT_FACTORY_CONNECTION_H_
+#define MOJO_SHELL_SHELL_CLIENT_FACTORY_CONNECTION_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "mojo/shell/identity.h"
+#include "mojo/shell/public/interfaces/shell_client_factory.mojom.h"
+#include "url/gurl.h"
+
+namespace mojo {
+namespace shell {
+class ApplicationManager;
+
+// A ShellClientFactoryConnection is responsible for creating and maintaining a
+// connection to an app which provides the ShellClientFactory service.
+// A ShellClientFactoryConnection can only be destroyed via CloseConnection.
+// A ShellClientFactoryConnection manages its own lifetime and cannot be used
+// with a scoped_ptr to avoid reentrant calls into ApplicationManager late in
+// destruction.
+class ShellClientFactoryConnection {
+ public:
+  using ClosedCallback = base::Callback<void(ShellClientFactoryConnection*)>;
+  // |id| is a unique identifier for this content handler.
+  ShellClientFactoryConnection(ApplicationManager* manager,
+                           const Identity& source,
+                           const Identity& shell_client_factory,
+                           uint32_t id,
+                           const ClosedCallback& connection_closed_callback);
+
+  void CreateShellClient(mojom::ShellClientRequest request, const GURL& url);
+
+  // Closes the connection and destroys |this| object.
+  void CloseConnection();
+
+  const Identity& identity() const { return identity_; }
+  uint32_t id() const { return id_; }
+
+ private:
+  ~ShellClientFactoryConnection();
+
+  void ApplicationDestructed();
+
+  ClosedCallback connection_closed_callback_;
+  Identity identity_;
+
+  mojom::ShellClientFactoryPtr shell_client_factory_;
+  bool connection_closed_;
+  // The id for this content handler.
+  const uint32_t id_;
+  int ref_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellClientFactoryConnection);
+};
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // MOJO_SHELL_SHELL_CLIENT_FACTORY_CONNECTION_H_