mash: improves browser frame decorations

ash/common/frame/default_header_painter.h

 // Copyright 2014 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_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_
 #define ASH_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/common/frame/header_painter.h"
+#include "ash/public/interfaces/window_style.mojom.h"
 #include "base/compiler_specific.h"  // override
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/animation/animation_delegate.h"
 
 namespace gfx {
 class Rect;
 class SlideAnimation;
 }
 namespace views {
 class View;
 class Widget;
 }
 
 namespace ash {
 class FrameCaptionButtonContainerView;
 
 // Helper class for painting the default window header.
 class ASH_EXPORT DefaultHeaderPainter : public HeaderPainter,
                                         public gfx::AnimationDelegate {
  public:
-  DefaultHeaderPainter();
+  explicit DefaultHeaderPainter(
+      mojom::WindowStyle window_style = mojom::WindowStyle::DEFAULT);
   ~DefaultHeaderPainter() override;
 
   // DefaultHeaderPainter does not take ownership of any of the parameters.
   void Init(views::Widget* frame,
             views::View* header_view,
             FrameCaptionButtonContainerView* caption_button_container);
 
   // HeaderPainter overrides:
   int GetMinimumHeaderWidth() const override;
   void PaintHeader(gfx::Canvas* canvas, Mode mode) override;
@@ skipping 43 matching lines @@
   // assumed to be positioned at the top left corner of |view_| and to have the
   // same width as |view_|.
   gfx::Rect GetLocalBounds() const;
 
   // Returns the bounds for the title.
   gfx::Rect GetTitleBounds() const;
 
   // Returns whether the frame uses custom frame coloring.
   bool UsesCustomFrameColors() const;
 
+  const mojom::WindowStyle window_style_;
   views::Widget* frame_;
   views::View* view_;
   views::View* left_header_view_;  // May be NULL.
   SkColor active_frame_color_;
   SkColor inactive_frame_color_;
   FrameCaptionButtonContainerView* caption_button_container_;
 
   // The height of the header to paint.
   int painted_height_;
 
   // Whether the header should be painted as active.
   Mode mode_;
 
   // Whether the header is painted for the first time.
   bool initial_paint_;
 
   std::unique_ptr<gfx::SlideAnimation> activation_animation_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultHeaderPainter);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_FRAME_DEFAULT_HEADER_PAINTER_H_