Have panels respond to changes in work area on Linux.

ui/base/x/x11_util.cc

 // Copyright (c) 2011 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.
 
 // This file defines utility functions for X11 (Linux only). This code has been
 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support
 // remains woefully incomplete.
 
 #include "ui/base/x/x11_util.h"
 
@@ skipping 791 matching lines @@
   return monitor_rect.x == window_rect.x() &&
          monitor_rect.y == window_rect.y() &&
          monitor_rect.width == window_rect.width() &&
          monitor_rect.height == window_rect.height();
 #else
   NOTIMPLEMENTED();
   return false;
 #endif
 }
 
+Atom GetAtomForScreenProperty(const char* atom_name) {
+  GdkAtom gdk_atom = gdk_atom_intern_static_string(atom_name);
+  return gdk_x11_atom_to_xatom_for_display(

[sadrul, 2011/11/18 17:56:42]

Please use non-gtk functions (e.g. XInternAtom)

[prasadt, 2011/11/18 22:31:42]

Done.

As it turns, there is an existing helper function that I can use.

+      gdk_screen_get_display(gdk_screen_get_default()), gdk_atom);
+}
+
 // ----------------------------------------------------------------------------
 // These functions are declared in x11_util_internal.h because they require
 // XLib.h to be included, and it conflicts with many other headers.
 XRenderPictFormat* GetRenderARGB32Format(Display* dpy) {
   static XRenderPictFormat* pictformat = NULL;
   if (pictformat)
     return pictformat;
 
   // First look for a 32-bit format which ignores the alpha value
   XRenderPictFormat templ;
@@ skipping 110 matching lines @@
       << "request_code " << static_cast<int>(error_event.request_code) << ", "
       << "minor_code " << static_cast<int>(error_event.minor_code)
       << " (" << request_str << ")";
 }
 
 // ----------------------------------------------------------------------------
 // End of x11_util_internal.h
 
 
 }  // namespace ui