Linux: avoid browser windows moving around by the size of WM decorations over restart.

chrome/browser/gtk/browser_window_gtk.h

Index: chrome/browser/gtk/browser_window_gtk.h
===================================================================
--- chrome/browser/gtk/browser_window_gtk.h	(revision 26487)
+++ chrome/browser/gtk/browser_window_gtk.h	(working copy)
@@ -140,6 +140,7 @@
   void UpdateUIForContents(TabContents* contents);
 
   void OnBoundsChanged(const gfx::Rect& bounds);
+  void OnDebouncedBoundsChanged();
   void OnStateChanged(GdkWindowState state, GdkWindowState changed_mask);
 
   // Returns false if we're not ready to close yet.  E.g., a tab may have an
@@ -361,6 +362,9 @@
   // The timer used to update frames for the Loading Animation.
   base::RepeatingTimer<BrowserWindowGtk> loading_animation_timer_;
 
+  // The timer used to save the window position for session restore.
+  base::OneShotTimer<BrowserWindowGtk> mainwin_configure_debounce_timer_;
+
   // Whether the custom chrome frame pref is set.  Normally you want to use
   // UseCustomFrame() above to determine whether to use the custom frame or
   // not.