This adds in the ability for Chrome to generate windows with snapshots of all...

app/x11_util.h

 // Copyright (c) 2010 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 APP_X11_UTIL_H_
 #define APP_X11_UTIL_H_
 
 // This file declares utility functions for X11 (Linux only).
 //
 // These functions do not require the Xlib headers to be included (which is why
@@ skipping 60 matching lines @@
 XID GetX11WindowFromGdkWindow(GdkWindow* window);
 // Get a Visual from the given widget. Since we don't include the Xlib
 // headers, this is returned as a void*.
 void* GetVisualFromGtkWidget(GtkWidget* widget);
 // Return the number of bits-per-pixel for a pixmap of the given depth
 int BitsPerPixelForPixmapDepth(Display* display, int depth);
 // Returns true if |window| is visible.
 bool IsWindowVisible(XID window);
 // Returns the bounds of |window|.
 bool GetWindowRect(XID window, gfx::Rect* rect);
-// Get the value of an int or string property.  On success, true is returned and
-// the value is stored in |value|.
+// Get the value of an int, int array, or string property.  On
+// success, true is returned and the value is stored in |value|.
 bool GetIntProperty(XID window, const std::string& property_name, int* value);
+bool GetIntArrayProperty(XID window, const std::string& property_name,
+                         std::vector<int>* value);
 bool GetStringProperty(
     XID window, const std::string& property_name, std::string* value);
 
 // Get |window|'s parent window, or None if |window| is the root window.
 XID GetParentWindow(XID window);
 
 // Walk up |window|'s hierarchy until we find a direct child of |root|.
 XID GetHighestAncestorWindow(XID window, XID root);
 
 // Implementers of this interface receive a notification for every X window of
@@ skipping 70 matching lines @@
 // into a byte vector.
 void GrabWindowSnapshot(GtkWindow* gdk_window,
                         std::vector<unsigned char>* png_representation);
 
 // Change desktop for |window| to the desktop of |destination| window.
 bool ChangeWindowDesktop(XID window, XID destination);
 
 }  // namespace x11_util
 
 #endif  // APP_X11_UTIL_H_