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

chrome/browser/renderer_host/web_cache_manager.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/renderer_host/web_cache_manager.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_service.h"
 #include "base/sys_info.h"
 #include "base/time.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/prefs/pref_registry_simple.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/render_messages.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 
 using base::Time;
 using base::TimeDelta;
 using WebKit::WebCache;
@@ skipping 405 matching lines @@
     if (idle >= TimeDelta::FromMinutes(kRendererInactiveThresholdMinutes)) {
       // Moved to inactive status.  This invalidates our iterator.
       inactive_renderers_.insert(*iter);
       active_renderers_.erase(*iter);
       iter = active_renderers_.begin();
       continue;
     }
     ++iter;
   }
 }