Mac: make save/open dialogs operate as tab-modal sheets....

chrome/browser/cocoa/bookmark_menu_cocoa_controller.mm

 // Copyright (c) 2009 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 "app/gfx/text_elider.h"
 #include "base/sys_string_conversions.h"
+#include "chrome/app/chrome_dll_resource.h"  // IDC_*
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/browser.h"
+#include "chrome/browser/browser_list.h"
 #import "chrome/browser/cocoa/bookmark_menu_bridge.h"
 #import "chrome/browser/cocoa/bookmark_menu_cocoa_controller.h"
 #include "chrome/browser/cocoa/event_utils.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "webkit/glue/window_open_disposition.h"
 
 namespace {
 
 // Menus more than this many pixels wide will get trimmed
@@ skipping 43 matching lines @@
   NSInteger tag = [sender tag];
   int identifier = tag;
   const BookmarkNode* node = [self nodeForIdentifier:identifier];
   DCHECK(node);
   if (!node)
     return;  // shouldn't be reached
 
   [self openURLForNode:node];
 }
 
+- (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item {
+  if (Browser* browser = BrowserList::GetLastActive()) {
+    return browser->command_updater()->IsCommandEnabled(
+                                         IDC_BOOKMARK_MENU_CONTENTS) ? YES : NO;
+  }
+  // Enable bookmarks when there's no browser window.
+  return YES;
+}
+
 @end  // BookmarkMenuCocoaController
-