mustash: Enable connections to mus from the Chrome renderer [take 2]

content/renderer/render_widget_mus_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 CONTENT_RENDERER_RENDER_WIDGET_MUS_CONNECTION_H_
+#define CONTENT_RENDERER_RENDER_WIDGET_MUS_CONNECTION_H_
+
+#include "base/macros.h"
+#include "components/mus/public/cpp/window.h"
+#include "components/mus/public/cpp/window_observer.h"
+#include "components/mus/public/cpp/window_surface.h"
+#include "components/mus/public/cpp/window_tree_connection.h"
+#include "components/mus/public/cpp/window_tree_delegate.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace content {
+
+class RenderWidgetMusConnection : public mus::WindowTreeDelegate,
+                                  public mus::WindowObserver {
+ public:
+  RenderWidgetMusConnection(
+      int routing_id,
+      mojo::InterfaceRequest<mus::mojom::WindowTreeClient> request);
+  ~RenderWidgetMusConnection() override;
+
+ private:
+  void SubmitCompositorFrame();
+
+  // WindowTreeDelegate implementation:
+  void OnConnectionLost(mus::WindowTreeConnection* connection) override;
+  void OnEmbed(mus::Window* root) override;
+  void OnUnembed() override;
+  void OnWindowBoundsChanged(mus::Window* window,
+                             const gfx::Rect& old_bounds,
+                             const gfx::Rect& new_bounds) override;
+
+  const int routing_id_;
+  mus::Window* root_;
+  scoped_ptr<mus::WindowSurface> surface_;
+
+  DISALLOW_COPY_AND_ASSIGN(RenderWidgetMusConnection);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_RENDER_WIDGET_MUS_CONNECTION_H_