Move the bits of Prefs where production code has only trivially easy

chrome/browser/bookmarks/bookmark_expanded_state_tracker.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/bookmarks/bookmark_expanded_state_tracker.h"
 
+#include "base/prefs/public/pref_service_base.h"
 #include "base/string_number_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/api/prefs/pref_service_base.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/common/pref_names.h"
 
 BookmarkExpandedStateTracker::BookmarkExpandedStateTracker(
     content::BrowserContext* browser_context,
     BookmarkModel* bookmark_model)
     : browser_context_(browser_context),
       bookmark_model_(bookmark_model) {
   bookmark_model->AddObserver(this);
@@ skipping 75 matching lines @@
     return;
 
   ListValue values;
   for (Nodes::const_iterator i = nodes.begin(); i != nodes.end(); ++i) {
     values.Set(values.GetSize(),
                new StringValue(base::Int64ToString((*i)->id())));
   }
 
   prefs->Set(prefs::kBookmarkEditorExpandedNodes, values);
 }