Disables zoom icon & zoom bubble for GTK for M22.

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 487 matching lines @@
         ChromeToMobileService::IsChromeToMobileEnabled()) {
       CreateChromeToMobileButton();
       gtk_box_pack_end(GTK_BOX(hbox_.get()), chrome_to_mobile_view_.get(),
                        FALSE, FALSE, 0);
       command_updater_->AddCommandObserver(IDC_CHROME_TO_MOBILE_PAGE, this);
       ChromeToMobileServiceFactory::GetForProfile(browser_->profile())->
           RequestMobileListUpdate();
     }
   }
 
-  CreateZoomButton();
-  gtk_box_pack_end(GTK_BOX(hbox_.get()), zoom_.get(), FALSE, FALSE, 0);
+  // TODO(khorimoto): Uncomment the following 2 lines when zoom icon/bubble
+  // implementation is complete for M23.
+  // CreateZoomButton();
+  // gtk_box_pack_end(GTK_BOX(hbox_.get()), zoom_.get(), FALSE, FALSE, 0);
 
   content_setting_hbox_.Own(gtk_hbox_new(FALSE, kInnerPadding + 1));
   gtk_widget_set_name(content_setting_hbox_.get(),
                       "chrome-content-setting-hbox");
   gtk_box_pack_end(GTK_BOX(hbox_.get()), content_setting_hbox_.get(),
                    FALSE, FALSE, 1);
 
   for (int i = 0; i < CONTENT_SETTINGS_NUM_TYPES; ++i) {
     ContentSettingImageViewGtk* content_setting_view =
         new ContentSettingImageViewGtk(
@@ skipping 1532 matching lines @@
 }
 
 void LocationBarViewGtk::PageActionViewGtk::InspectPopup(
     ExtensionAction* action) {
   ExtensionPopupGtk::Show(
       action->GetPopupUrl(current_tab_id_),
       owner_->browser_,
       event_box_.get(),
       ExtensionPopupGtk::SHOW_AND_INSPECT);
 }