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

chrome/browser/ui/prefs/prefs_tab_helper_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 "base/file_util.h"
 #include "base/path_service.h"
-#include "chrome/browser/prefs/pref_service.h"
+#include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/testing_profile.h"
 
 class PrefsTabHelperBrowserTest : public InProcessBrowserTest {
  protected:
@@ skipping 145 matching lines @@
   // So it doesn't need to be tested here.
   EXPECT_EQ("FixedFontFamily",
             prefs->GetString(prefs::kWebKitFixedFontFamily));
   EXPECT_EQ("SansSerifFontFamily",
             prefs->GetString(prefs::kWebKitSansSerifFontFamily));
   EXPECT_EQ("SerifFontFamily",
             prefs->GetString(prefs::kWebKitSerifFontFamily));
   EXPECT_EQ("StandardFontFamily",
             prefs->GetString(prefs::kWebKitStandardFontFamily));
 };