Move PrefMember and PrefChangeRegistrar to api directory.

chrome/browser/tab_contents/spellchecker_submenu_observer_hunspell.cc

 // 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/tab_contents/spellchecker_submenu_observer.h"
 
 #include "base/logging.h"
 #include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/api/prefs/pref_member.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/spellchecker/spellcheck_host.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/spellcheck_messages.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 143 matching lines @@
   switch (command_id) {
     case IDC_CHECK_SPELLING_WHILE_TYPING:
       profile->GetPrefs()->SetBoolean(
           prefs::kEnableSpellCheck,
           !profile->GetPrefs()->GetBoolean(prefs::kEnableSpellCheck));
       if (rvh)
         rvh->Send(new SpellCheckMsg_ToggleSpellCheck(rvh->GetRoutingID()));
       break;
   }
 }