Linux Aura: Added --use-system-title-bar flag.

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_
 
 #include <set>
 #include <stack>
 #include <vector>
@@ skipping 171 matching lines @@
     // fully opaque.  Defaults to TRANSLUCENT_WINDOW if
     // ViewsDelegate::UseTransparentWindows().  Defaults to OPAQUE_WINDOW for
     // non-window widgets.
     WindowOpacity opacity;
     bool accept_events;
     bool can_activate;
     bool keep_on_top;
     Ownership ownership;
     bool mirror_origin_in_rtl;
     bool has_dropshadow;
-    // Only used by Windows. Specifies that the system default caption and icon
-    // should not be rendered, and that the client area should be equivalent to
-    // the window area.
+    // Specifies that the system default caption and icon should not be
+    // rendered, and that the client area should be equivalent to the window
+    // area. Only used on some platforms (Windows and Linux).
     bool remove_standard_frame;
     // Only used by ShellWindow on Windows. Specifies that the default icon of
     // packaged app should be the system default icon.
     bool use_system_default_icon;
     // 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;
     // Specifies the initial bounds of the Widget. Default is empty, which means
@@ skipping 686 matching lines @@
   // True when window movement via mouse interaction with the frame should be
   // disabled.
   bool movement_disabled_;
 
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_H_