Don't show the zoom bubble when the settings menu is showing on views or GTK.

chrome/browser/ui/gtk/browser_toolbar_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/browser_toolbar_gtk.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 #include <X11/XF86keysym.h>
 
@@ skipping 410 matching lines @@
 // BrowserToolbarGtk, public ---------------------------------------------------
 
 void BrowserToolbarGtk::UpdateWebContents(WebContents* contents,
                                           bool should_restore_state) {
   location_bar_->Update(should_restore_state ? contents : NULL);
 
   if (actions_toolbar_.get())
     actions_toolbar_->Update();
 }
 
+bool BrowserToolbarGtk::IsWrenchMenuShowing() const {
+  return wrench_menu_.get() && gtk_widget_get_visible(wrench_menu_->widget());
+}
+
 // BrowserToolbarGtk, private --------------------------------------------------
 
 void BrowserToolbarGtk::SetUpDragForHomeButton(bool enable) {
   if (enable) {
     gtk_drag_dest_set(home_->widget(), GTK_DEST_DEFAULT_ALL,
                       NULL, 0, GDK_ACTION_COPY);
     static const int targets[] = { ui::TEXT_PLAIN, ui::TEXT_URI_LIST, -1 };
     ui::SetDestTargetList(home_->widget(), targets);
 
     drop_handler_.reset(new ui::GtkSignalRegistrar());
@@ skipping 245 matching lines @@
   const SkBitmap* badge = theme_service_->GetBitmapNamed(resource_id);
   gfx::CanvasSkiaPaint canvas(expose, false);
   int x_offset = base::i18n::IsRTL() ? 0 : allocation.width - badge->width();
   int y_offset = 0;
   canvas.DrawImageInt(*badge,
                       allocation.x + x_offset,
                       allocation.y + y_offset);
 
   return FALSE;
 }