Make Mac menu code obey incognito availability.

chrome/browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller.h"
 
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"  // IDC_BOOKMARK_MENU
 #import "chrome/browser/app_controller_mac.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
@@ skipping 31 matching lines @@
   std::string url_string = node->url().possibly_invalid_spec();
   NSString* url = [NSString stringWithUTF8String:url_string.c_str()];
   if ([title length] == 0)
     return url;
   else if ([url length] == 0 || [url isEqualToString:title])
     return title;
   else
     return [NSString stringWithFormat:@"%@\n%@", title, url];
 }
 
-- (id)initWithBridge:(BookmarkMenuBridge *)bridge
+- (id)initWithBridge:(BookmarkMenuBridge*)bridge
              andMenu:(NSMenu*)menu {
   if ((self = [super init])) {
     bridge_ = bridge;
     DCHECK(bridge_);
     menu_ = menu;
     [[self menu] setDelegate:self];
   }
   return self;
 }
 
 - (void)dealloc {
   if ([[self menu] delegate] == self)
     [[self menu] setDelegate:nil];
   [super dealloc];
 }
 
 - (NSMenu*)menu {
   return menu_;
 }
 
 - (BOOL)validateMenuItem:(NSMenuItem*)menuItem {
   AppController* controller = [NSApp delegate];
-  return [controller keyWindowIsNotModal];
+  return ![controller keyWindowIsModal];
 }
 
 // NSMenu delegate method: called just before menu is displayed.
 - (void)menuNeedsUpdate:(NSMenu*)menu {
   bridge_->UpdateMenu(menu);
 }
 
 // Return the a BookmarkNode that has the given id (called
 // "identifier" here to avoid conflict with objc's concept of "id").
 - (const BookmarkNode*)nodeForIdentifier:(int)identifier {
@@ skipping 64 matching lines @@
 
 - (IBAction)openAllBookmarksNewWindow:(id)sender {
   [self openAll:[sender tag] withDisposition:NEW_WINDOW];
 }
 
 - (IBAction)openAllBookmarksIncognitoWindow:(id)sender {
   [self openAll:[sender tag] withDisposition:OFF_THE_RECORD];
 }
 
 @end  // BookmarkMenuCocoaController