Move code for old, deprecated Options UI to only ChromeOS

chrome/browser/ui/webui/options/font_settings_utils_mac.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.
-
-#include "chrome/browser/ui/webui/options/font_settings_utils.h"
-
-#import <Cocoa/Cocoa.h>
-
-#include "base/mac/scoped_nsautorelease_pool.h"
-#include "base/strings/sys_string_conversions.h"
-#include "base/values.h"
-#include "chrome/common/pref_names.h"
-#include "components/prefs/pref_service.h"
-
-namespace options {
-
-static void ValidateFontFamily(PrefService* prefs,
-                               const char* family_pref_name) {
-  // The native font settings dialog saved fonts by the font name, rather
-  // than the family name.  This worked for the old dialog since
-  // -[NSFont fontWithName:size] accepted a font or family name, but the
-  // behavior was technically wrong.  Since we really need the family name for
-  // the dom-ui options window, we will fix the saved preference if necessary.
-  NSString *family_name =
-      base::SysUTF8ToNSString(prefs->GetString(family_pref_name));
-  NSFont *font = [NSFont fontWithName:family_name
-                                 size:[NSFont systemFontSize]];
-  if (font &&
-      [[font familyName] caseInsensitiveCompare:family_name] != NSOrderedSame) {
-    std::string new_family_name = base::SysNSStringToUTF8([font familyName]);
-    prefs->SetString(family_pref_name, new_family_name);
-  }
-}
-
-// static
-void FontSettingsUtilities::ValidateSavedFonts(PrefService* prefs) {
-  ValidateFontFamily(prefs, prefs::kWebKitSerifFontFamily);
-  ValidateFontFamily(prefs, prefs::kWebKitSansSerifFontFamily);
-  ValidateFontFamily(prefs, prefs::kWebKitFixedFontFamily);
-}
-
-}  // namespace options