Custom frame UI for platform apps on Windows.

ui/views/widget/widget.h

 // Copyright (c) 2012 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 UI_VIEWS_WIDGET_WIDGET_H_
 #define UI_VIEWS_WIDGET_WIDGET_H_
 #pragma once
 
 #include <set>
 #include <stack>
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     // If true, the widget may be fully or partially transparent.  If false,
     // we can perform optimizations based on the widget being fully opaque.
     // Defaults to false.
     bool transparent;
     bool accept_events;
     bool can_activate;
     bool keep_on_top;
     Ownership ownership;
     bool mirror_origin_in_rtl;
     bool has_dropshadow;
+    // Only used by NativeWidgetWin. Specifies that the system default caption
+    // and icon should not be rendered, and that the client area should be
+    // equivalent to the window area.
+    bool remove_standard_frame;
     // Whether the widget should be maximized or minimized.
     ui::WindowShowState show_state;
     // Should the widget be double buffered? Default is false.
     bool double_buffer;
     gfx::NativeView parent;
     Widget* parent_widget;
     // Specifies the initial bounds of the Widget. Default is empty, which means
     // the NativeWidget may specify a default size.
     gfx::Rect bounds;
     // When set, this value is used as the Widget's NativeWidget implementation.
@@ skipping 586 matching lines @@
   // duplicate move events even though the mouse hasn't moved.
   bool last_mouse_event_was_move_;
   gfx::Point last_mouse_event_position_;
 
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_H_