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

chrome/browser/managed_mode/managed_mode_interstitial.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/managed_mode/managed_mode_interstitial.h"
 
 #include "base/i18n/rtl.h"
 #include "base/metrics/histogram.h"
+#include "base/prefs/pref_service.h"
 #include "chrome/browser/managed_mode/managed_mode_navigation_observer.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
@@ skipping 137 matching lines @@
 
 void ManagedModeInterstitial::OnDontProceed() {
   DispatchContinueRequest(false);
 }
 
 void ManagedModeInterstitial::DispatchContinueRequest(bool continue_request) {
   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
                           base::Bind(callback_, continue_request));
 }