GTK custom frame: Don't show the border when maximized. Enlarge the close but...

chrome/browser/gtk/browser_titlebar.h

 // Copyright (c) 2009 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.
 //
 // A helper class that contains the gtk widgets that make up the titlebar.  The
 // titlebar consists of the tabstrip and if the custom chrome frame is turned
 // on, it includes the taller titlebar and minimize, restore, maximize, and
 // close buttons.
 
 #ifndef CHROME_BROWSER_GTK_BROWSER_TITLEBAR_H_
@@ skipping 67 matching lines @@
   // Box that holds the min/max/close buttons if the user turns off window
   // manager decorations.
   GtkWidget* titlebar_buttons_box_;
   // Gtk alignment that contains the tab strip.  If the user turns off window
   // manager decorations, we draw this taller.
   GtkWidget* titlebar_alignment_;
 
   // Whether we are using a custom frame.
   bool using_custom_frame_;
 
+  // The normal width of the close button (the width it appears to the user)
+  // which is determined by the width of the bitmap we use to paint it. Its
+  // actual clickable width may differ if we are showing a custom frame and the
+  // window is maximized.
+  int close_button_default_width_;
+
   // Maximize and restore widgets in the titlebar.
   scoped_ptr<CustomDrawButton> minimize_button_;
   scoped_ptr<CustomDrawButton> maximize_button_;
   scoped_ptr<CustomDrawButton> restore_button_;
   scoped_ptr<CustomDrawButton> close_button_;
 
   // The context menu.
   scoped_ptr<MenuGtk> context_menu_;
 };
 
 #endif  // CHROME_BROWSER_GTK_BROWSER_TITLEBAR_H_