Change string16 to std::string in the gfx::Font() interface.

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

 // Copyright (c) 2011 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 "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"  // IDC_BOOKMARK_MENU
 #import "chrome/browser/app_controller_mac.h"
@@ skipping 10 matching lines @@
 // Menus more than this many pixels wide will get trimmed
 // TODO(jrg): ask UI dudes what a good value is.
 const NSUInteger kMaximumMenuPixelsWide = 300;
 
 }
 
 @implementation BookmarkMenuCocoaController
 
 + (NSString*)menuTitleForNode:(const BookmarkNode*)node {
   NSFont* nsfont = [NSFont menuBarFontOfSize:0];  // 0 means "default"
-  gfx::Font font(base::SysNSStringToUTF16([nsfont fontName]),
+  gfx::Font font(base::SysNSStringToUTF8([nsfont fontName]),
                  static_cast<int>([nsfont pointSize]));
   string16 title = ui::ElideText(node->GetTitle(),
                                  font,
                                  kMaximumMenuPixelsWide,
                                  false);
   return base::SysUTF16ToNSString(title);
 }
 
 + (NSString*)tooltipForNode:(const BookmarkNode*)node {
   NSString* title = base::SysUTF16ToNSString(node->GetTitle());
@@ skipping 100 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