Move prefs-related files under chrome/browser/ into a prefs/ subdir.

chrome/browser/dom_ui/font_settings_utils_mac.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.
 
 #include "chrome/browser/dom_ui/font_settings_utils.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/sys_string_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/pref_service.h"
+#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/pref_names.h"
 
 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 =
@@ skipping 22 matching lines @@
     font_list->Append(font_item);
   }
   return font_list;
 }
 
 void FontSettingsUtilities::ValidateSavedFonts(PrefService* prefs) {
   ValidateFontFamily(prefs, prefs::kWebKitSerifFontFamily);
   ValidateFontFamily(prefs, prefs::kWebKitSansSerifFontFamily);
   ValidateFontFamily(prefs, prefs::kWebKitFixedFontFamily);
 }