[GTK] Hide zoom bubble when changing tabs.

chrome/browser/ui/gtk/location_bar_view_gtk.cc

 // 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.
 
 #include "chrome/browser/ui/gtk/location_bar_view_gtk.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 650 matching lines @@
   UpdatePageActions();
   location_entry_->Update(contents);
   // The security level (background color) could have changed, etc.
   if (theme_service_->UsingNativeTheme()) {
     // In GTK mode, we need our parent to redraw, as it draws the text entry
     // border.
     gtk_widget_queue_draw(gtk_widget_get_parent(widget()));
   } else {
     gtk_widget_queue_draw(widget());
   }
+  ZoomBubbleGtk::Close();
 }
 
 void LocationBarViewGtk::OnAutocompleteAccept(const GURL& url,
     WindowOpenDisposition disposition,
     content::PageTransition transition,
     const GURL& alternate_nav_url) {
   if (url.is_valid()) {
     location_input_ = UTF8ToUTF16(url.spec());
     disposition_ = disposition;
     transition_ = content::PageTransitionFromInt(
@@ skipping 1370 matching lines @@
 }
 
 void LocationBarViewGtk::PageActionViewGtk::InspectPopup(
     ExtensionAction* action) {
   ExtensionPopupGtk::Show(
       action->GetPopupUrl(current_tab_id_),
       owner_->browser_,
       event_box_.get(),
       ExtensionPopupGtk::SHOW_AND_INSPECT);
 }