Only auto-close dialogs when last browser closes.

chrome/browser/browser_list_gtk.cc

Index: chrome/browser/browser_list_gtk.cc
diff --git a/chrome/browser/browser_list_gtk.cc b/chrome/browser/browser_list_gtk.cc
index cf74096e7676f354e9dd00a57aa1ce03ababb410..8633121575922ede24de409c8e8e6c97e5fb5c9c 100644
--- a/chrome/browser/browser_list_gtk.cc
+++ b/chrome/browser/browser_list_gtk.cc
@@ -16,7 +16,10 @@ void BrowserList::AllBrowsersClosed() {
     // We filter by visible widgets because there are toplevel windows that if
     // we try to destroy, we crash.  For example, trying to destroy the tooltip
     // window or the toplevel associated with drop down windows crashes.
-    if (GTK_WIDGET_VISIBLE(GTK_WIDGET(window)))
+    // We further filter to only close dialogs, as blindly closing all windows
+    // causes problems with things like status icons.
+    if (GTK_WIDGET_VISIBLE(GTK_WIDGET(window)) &&
+        (GTK_IS_DIALOG(GTK_WIDGET(window))))
       gtk_widget_destroy(GTK_WIDGET(window));
   }
   g_list_foreach(window_list, (GFunc)g_object_unref, NULL);