Wires up WorkspaceLayoutManager in mash

mash/wm/window_layout.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 MASH_WM_WINDOW_LAYOUT_H_
-#define MASH_WM_WINDOW_LAYOUT_H_
-
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "mash/wm/layout_manager.h"
-
-namespace mash {
-namespace wm {
-
-// Responsible for layout of top level windows.
-class WindowLayout : public LayoutManager {
- public:
-  explicit WindowLayout(mus::Window* owner);
-  ~WindowLayout() override;
-
- private:
-  // Overridden from LayoutManager:
-  void LayoutWindow(mus::Window* window) override;
-  void OnWindowSharedPropertyChanged(
-      mus::Window* window,
-      const std::string& name,
-      const std::vector<uint8_t>* old_data,
-      const std::vector<uint8_t>* new_data) override;
-
-  void FitToContainer(mus::Window* window);
-  void CenterWindow(mus::Window* window, const gfx::Size& preferred_size);
-
-  DISALLOW_COPY_AND_ASSIGN(WindowLayout);
-};
-
-}  // namespace wm
-}  // namespace mash
-
-#endif  // MASH_WM_WINDOW_LAYOUT_H_