GTK implementation of remembering platform app window geometry.

chrome/browser/ui/gtk/gtk_window_util.h

Index: chrome/browser/ui/gtk/gtk_window_util.h
diff --git a/chrome/browser/ui/gtk/gtk_window_util.h b/chrome/browser/ui/gtk/gtk_window_util.h
index 3ed69ac6c92f0be4b97d4a66ff3953b1007ad449..38bca07858a11e3325485fd83d5278c3aad04a78 100644
--- a/chrome/browser/ui/gtk/gtk_window_util.h
+++ b/chrome/browser/ui/gtk/gtk_window_util.h
@@ -8,6 +8,8 @@
 #include <gtk/gtk.h>
 #include "ui/gfx/rect.h"
 
+class BaseWindow;
+
 namespace content {
 class WebContents;
 }
@@ -49,6 +51,12 @@ void SetWindowCustomClass(GtkWindow* window, const std::string& wmclass);
 // EWMH for full screen mode.
 void SetWindowSize(GtkWindow* window, const gfx::Size& size);
 
+// Update the origin of |bounds| and |restored_bounds| with values gotten
+// from GTK.
+void UpdateWindowPosition(BaseWindow* window,
+                          gfx::Rect* bounds,
+                          gfx::Rect* restored_bounds);
+
 }  // namespace gtk_window_util
 
 #endif  // CHROME_BROWSER_UI_GTK_GTK_WINDOW_UTIL_H_