Revert "Delete the ViewManager and WindowManager services."

services/window_manager/window_manager_delegate.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 SERVICES_WINDOW_MANAGER_WINDOW_MANAGER_DELEGATE_H_
+#define SERVICES_WINDOW_MANAGER_WINDOW_MANAGER_DELEGATE_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "mojo/public/cpp/bindings/string.h"
+#include "mojo/public/interfaces/application/service_provider.mojom.h"
+#include "mojo/services/view_manager/cpp/view_manager_delegate.h"
+
+namespace mojo {
+class ApplicationConnection;
+}
+
+namespace window_manager {
+
+class WindowManagerRoot;
+
+class WindowManagerDelegate {
+ public:
+  // See WindowManager::Embed() for details.
+  virtual void Embed(const mojo::String& url,
+                     mojo::InterfaceRequest<mojo::ServiceProvider> services,
+                     mojo::ServiceProviderPtr exposed_services) = 0;
+
+ protected:
+  virtual ~WindowManagerDelegate() {}
+};
+
+// Controls a single instance of WindowManagerRoot, representing one native
+// window and all its Mojo-controlled views inside it. Instances of this object
+// are owned by the WindowManagerRoot they control.
+class WindowManagerController : public WindowManagerDelegate,
+                                public mojo::ViewManagerDelegate {};
+
+// Creates WindowManagerControllers.
+// This class should be implemented by window managers and passed to the
+// WindowManagerApp object.
+class WindowManagerControllerFactory {
+ public:
+  // CreateWindowManagerController() is called by WindowManagerRoot to create
+  // its controller. The WindowManagerRoot passed to this method is guaranteed
+  // to remain valid for the entire lifetime of the created
+  // WindowManagerController.
+  virtual scoped_ptr<WindowManagerController> CreateWindowManagerController(
+      mojo::ApplicationConnection* connection,
+      WindowManagerRoot* wm_root_) = 0;
+};
+
+}  // namespace mojo
+
+#endif  // SERVICES_WINDOW_MANAGER_WINDOW_MANAGER_DELEGATE_H_