mash: Reverse the responsibilities of the NewWindowClient.

ash/common/new_window_controller.h

+// Copyright 2016 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 ASH_COMMON_NEW_WINDOW_CONTROLLER_H_
+#define ASH_COMMON_NEW_WINDOW_CONTROLLER_H_
+
+#include "ash/public/interfaces/new_window.mojom.h"
+#include "base/macros.h"
+#include "mojo/public/cpp/bindings/associated_binding.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
+
+namespace ash {
+
+// Provides the NewWindowController interface to the outside world. This lets a
+// consumer of ash provide a NewWindowClient, which we will dispatch to if one
+// has been provided to us.
+class NewWindowController : public mojom::NewWindowController,
+                            public mojom::NewWindowClient {
+ public:
+  NewWindowController();
+  ~NewWindowController() override;
+
+  void BindRequest(mojom::NewWindowControllerRequest request);
+
+  // NewWindowClient:
+  void NewTab() override;
+  void NewWindow(bool incognito) override;
+  void OpenFileManager() override;
+  void OpenCrosh() override;
+  void OpenGetHelp() override;
+  void RestoreTab() override;
+  void ShowKeyboardOverlay() override;
+  void ShowTaskManager() override;
+  void OpenFeedbackPage() override;
+
+ private:
+  // NewWindowController:
+  void SetClient(mojom::NewWindowClientAssociatedPtrInfo client) override;
+
+  mojo::BindingSet<mojom::NewWindowController> bindings_;
+
+  mojom::NewWindowClientAssociatedPtr client_;
+
+  DISALLOW_COPY_AND_ASSIGN(NewWindowController);
+};
+
+}  // namespace ash
+
+#endif  // ASH_COMMON_NEW_WINDOW_CONTROLLER_H_