Converts mash to use the common non-client frame

ash/mus/bridge/wm_window_mus.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_MUS_BRIDGE_WM_WINDOW_MUS_H_
 #define ASH_MUS_BRIDGE_WM_WINDOW_MUS_H_
 
 #include <memory>
 
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/wm_window.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "services/ui/public/cpp/window_observer.h"
 
 namespace views {
 class Widget;
 }
 
 namespace ash {
 
 namespace wm {
 class WmLayoutManager;
 }
 
 namespace mus {
 
 class MusLayoutManagerAdapter;
 class WmRootWindowControllerMus;
+class WmWindowMusTestApi;
 
 // WmWindow implementation for mus.
 //
 // WmWindowMus is tied to the life of the underlying ui::Window (it is stored
 // as an owned property).
 class WmWindowMus : public WmWindow, public ui::WindowObserver {
  public:
   // Indicates the source of the widget creation.
   enum class WidgetCreationType {
     // The widget was created internally, and not at the request of a client.
@@ skipping 182 matching lines @@
   void AddObserver(WmWindowObserver* observer) override;
   void RemoveObserver(WmWindowObserver* observer) override;
   bool HasObserver(const WmWindowObserver* observer) const override;
   void AddTransientWindowObserver(WmTransientWindowObserver* observer) override;
   void RemoveTransientWindowObserver(
       WmTransientWindowObserver* observer) override;
   void AddLimitedPreTargetHandler(ui::EventHandler* handler) override;
   void RemoveLimitedPreTargetHandler(ui::EventHandler* handler) override;
 
  private:
+  friend class WmWindowMusTestApi;
+
   // ui::WindowObserver:
   void OnTreeChanging(const TreeChangeParams& params) override;
   void OnTreeChanged(const TreeChangeParams& params) override;
   void OnWindowReordered(ui::Window* window,
                          ui::Window* relative_window,
                          ui::mojom::OrderDirection direction) override;
   void OnWindowSharedPropertyChanged(
       ui::Window* window,
       const std::string& name,
       const std::vector<uint8_t>* old_data,
@@ skipping 29 matching lines @@
   ui::WindowShowState restore_show_state_ = ui::SHOW_STATE_DEFAULT;
 
   bool snap_children_to_pixel_boundary_ = false;
 
   // If true child windows should get a slightly larger hit region to make
   // resizing easier.
   bool children_use_extended_hit_region_ = false;
 
   base::ObserverList<WmTransientWindowObserver, true> transient_observers_;
 
+  // If true the minimum size is 0x0, default is minimum size comes from widget.
+  bool use_empty_minimum_size_for_testing_ = false;
+
   DISALLOW_COPY_AND_ASSIGN(WmWindowMus);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_BRIDGE_WM_WINDOW_MUS_H_