Linux: stop the window reconfigure debounce timer when a window is closed.

chrome/browser/gtk/browser_window_gtk.cc

Index: chrome/browser/gtk/browser_window_gtk.cc
===================================================================
--- chrome/browser/gtk/browser_window_gtk.cc	(revision 27247)
+++ chrome/browser/gtk/browser_window_gtk.cc	(working copy)
@@ -853,6 +853,9 @@
     accel_group_ = NULL;
   }
 
+  // Cancel any pending callback from the window configure debounce timer.
+  window_configure_debounce_timer_.Stop();
+
   GtkWidget* window = GTK_WIDGET(window_);
   // To help catch bugs in any event handlers that might get fired during the
   // destruction, set window_ to NULL before any handlers will run.