Adds ImmersiveContext and ImmersiveHandlerFactory

ash/wm/immersive_handler_factory_ash.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_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_
+#define ASH_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_
+
+#include "ash/wm/immersive_handler_factory.h"
+#include "base/macros.h"
+
+namespace ash {
+
+class ASH_EXPORT ImmersiveHandlerFactoryAsh : public ImmersiveHandlerFactory {
+ public:
+  ImmersiveHandlerFactoryAsh();
+  ~ImmersiveHandlerFactoryAsh() override;
+
+  // ImmersiveHandlerFactory:
+  std::unique_ptr<ImmersiveFocusWatcher> CreateFocusWatcher(
+      ImmersiveFullscreenController* controller) override;
+  std::unique_ptr<ImmersiveGestureHandler> CreateGestureHandler(
+      ImmersiveFullscreenController* controller) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ImmersiveHandlerFactoryAsh);
+};
+
+}  // namespace ash
+
+#endif  // ASH_WM_IMMERSIVE_HANDLER_FACTORY_ASH_H_