[gtk] Close zoom bubble immediately when window is closed to avoid orphaned

chrome/browser/ui/gtk/bubble/bubble_gtk.h

 // Copyright (c) 2012 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 CHROME_BROWSER_UI_GTK_BUBBLE_BUBBLE_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BUBBLE_BUBBLE_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <vector>
@@ skipping 166 matching lines @@
 
   CHROMEGTK_CALLBACK_1(BubbleGtk, gboolean, OnExpose, GdkEventExpose*);
   CHROMEGTK_CALLBACK_1(BubbleGtk, void, OnSizeAllocate, GtkAllocation*);
   CHROMEGTK_CALLBACK_1(BubbleGtk, gboolean, OnButtonPress, GdkEventButton*);
   CHROMEGTK_CALLBACK_0(BubbleGtk, gboolean, OnDestroy);
   CHROMEGTK_CALLBACK_0(BubbleGtk, void, OnHide);
   CHROMEGTK_CALLBACK_1(BubbleGtk, gboolean, OnToplevelConfigure,
                        GdkEventConfigure*);
   CHROMEGTK_CALLBACK_1(BubbleGtk, gboolean, OnToplevelUnmap, GdkEvent*);
   CHROMEGTK_CALLBACK_1(BubbleGtk, void, OnAnchorAllocate, GtkAllocation*);
+  CHROMEGTK_CALLBACK_0(BubbleGtk, void, OnAnchorDestroy);
+  CHROMEGTK_CALLBACK_0(BubbleGtk, void, OnToplevelDestroy);
 
   // The caller supplied delegate, can be NULL.
   BubbleDelegateGtk* delegate_;
 
   // Our GtkWindow popup window, we don't technically "own" the widget, since
   // it deletes us when it is destroyed.
   GtkWidget* window_;
 
   // Provides colors and stuff.
   GtkThemeService* theme_service_;
@@ skipping 36 matching lines @@
   bool closed_by_escape_;
 
   content::NotificationRegistrar registrar_;
 
   ui::GtkSignalRegistrar signals_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BUBBLE_BUBBLE_GTK_H_