Makes NewWindow() take set of properties for window

mash/wm/window_manager_impl.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_MANAGER_IMPL_H_
 #define MASH_WM_WINDOW_MANAGER_IMPL_H_
 
 #include "base/macros.h"
 #include "components/mus/common/types.h"
 #include "components/mus/public/cpp/window_observer.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 
 class WindowManagerApplication;
 
 using WindowManagerErrorCodeCallback =
     const mojo::Callback<void(mus::mojom::WindowManagerErrorCode)>;
 
 class WindowManagerImpl : public mus::mojom::WindowManager,
                           public mus::WindowObserver {
  public:
   explicit WindowManagerImpl(WindowManagerApplication* state);
   ~WindowManagerImpl() override;
 
  private:
   gfx::Rect CalculateDefaultBounds(mus::Window* window) const;
   gfx::Rect GetMaximizedWindowBounds() const;
 
   // mus::mojom::WindowManager:
-  void OpenWindow(
-      mus::mojom::WindowTreeClientPtr client,
-      mojo::Map<mojo::String, mojo::Array<uint8_t>> properties) override;
+  void OpenWindow(mus::mojom::WindowTreeClientPtr client,
+                  mojo::Map<mojo::String, mojo::Array<uint8_t>>
+                      transport_properties) override;
   void GetConfig(const GetConfigCallback& callback) override;
 
   mus::Window* GetContainerForChild(mus::Window* child);
 
   WindowManagerApplication* state_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerImpl);
 };
 
 #endif  // MASH_WM_WINDOW_MANAGER_IMPL_H_