Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/tab_contents/spelling_menu_observer_browsertest.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/spelling_menu_observer.h"
 
 #include <vector>
 
 #include "base/command_line.h"
+#include "base/prefs/pref_service.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/spellchecker/spelling_service_client.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_observer.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/testing_profile.h"
 
 using content::RenderViewHost;
 using content::WebContents;
@@ skipping 432 matching lines @@
 
   menu->GetMenuItem(2, &item);
   EXPECT_EQ(IDC_CONTENT_CONTEXT_SPELLING_TOGGLE, item.command_id);
   EXPECT_FALSE(item.enabled);
   EXPECT_FALSE(item.hidden);
 
   // Set incognito back to false to allow appropriate test cleanup.
   menu->GetProfile()->AsTestingProfile()->set_incognito(false);
 }