[Chromecast] Reuse the Aura window manager across receiver apps.

chromecast/graphics/cast_window_manager_aura.h

+// Copyright 2017 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 CHROMECAST_GRAPHICS_CAST_WINDOW_MANAGER_AURA_H_
+#define CHROMECAST_GRAPHICS_CAST_WINDOW_MANAGER_AURA_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/observer_list.h"
+#include "chromecast/graphics/cast_vsync_settings.h"
+#include "chromecast/graphics/cast_window_manager.h"
+
+namespace aura {
+class Window;
+namespace client {
+class DefaultCaptureClient;
+}  // namespace client
+}  // namespace aura
+
+namespace chromecast {
+
+class CastWindowTreeHost;
+
+class CastWindowManagerAura : public CastWindowManager,
+                              private CastVSyncSettings::Observer {
+ public:
+  ~CastWindowManagerAura() override;
+
+  // CastWindowManager implementation:
+  void TearDown() override;
+  void AddWindow(gfx::NativeView window) override;
+
+ private:
+  friend class CastWindowManager;
+
+  // This class should only be instantiated by CastWindowManager::Create.
+  explicit CastWindowManagerAura(bool enable_input);
+
+  // CastVSyncSettings::Observer implementation:
+  void OnVSyncIntervalChanged(base::TimeDelta interval) override;
+
+  void Setup();
+
+  const bool enable_input_;
+  std::unique_ptr<CastWindowTreeHost> window_tree_host_;
+  std::unique_ptr<aura::client::DefaultCaptureClient> capture_client_;
+
+  DISALLOW_COPY_AND_ASSIGN(CastWindowManagerAura);
+};
+
+}  // namespace chromecast
+
+#endif  // CHROMECAST_GRAPHICS_CAST_WINDOW_MANAGER_AURA_H_