[Mac] Do not insert an "About Chrome" item when the Wrench menu shows an available update.

chrome/browser/cocoa/toolbar_controller.mm

 // Copyright (c) 2010 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.
 
 #import "chrome/browser/cocoa/toolbar_controller.h"
 
 #include <algorithm>
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_mac.h"
@@ skipping 527 matching lines @@
       [[NSImage alloc] initWithSize:wrenchImageSize]);
 
   [overlayImage lockFocus];
   [badge drawAtPoint:NSZeroPoint
             fromRect:NSZeroRect
            operation:NSCompositeSourceOver
             fraction:1.0];
   [overlayImage unlockFocus];
 
   [[wrenchButton_ cell] setOverlayImage:overlayImage];
-
-  [wrenchMenuController_ insertUpdateAvailableItem];
 }
 
 - (void)prefChanged:(std::string*)prefName {
   if (!prefName) return;
   if (*prefName == prefs::kShowHomeButton) {
     [self showOptionalHomeButton];
   }
 }
 
 - (void)createBrowserActionButtons {
@@ skipping 200 matching lines @@
 - (void)indicateDropURLsInView:(NSView*)view at:(NSPoint)point {
   // Do nothing.
 }
 
 // (URLDropTargetController protocol)
 - (void)hideDropURLsIndicatorInView:(NSView*)view {
   // Do nothing.
 }
 
 @end