Move ReadFileToString to the base namespace.

chrome/browser/chromeos/app_mode/kiosk_app_data.cc

 // Copyright 2013 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/chromeos/app_mode/kiosk_app_data.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 94 matching lines @@
  private:
   friend class base::RefCountedThreadSafe<IconLoader>;
 
   virtual ~IconLoader() {}
 
   // Loads the icon from locally stored |icon_path_| on the blocking pool
   void LoadOnBlockingPool() {
     DCHECK(task_runner_->RunsTasksOnCurrentThread());
 
     std::string data;
-    if (!file_util::ReadFileToString(base::FilePath(icon_path_), &data)) {
+    if (!base::ReadFileToString(base::FilePath(icon_path_), &data)) {
       ReportResultOnBlockingPool(FAILED_TO_LOAD);
       return;
     }
     raw_icon_ = base::RefCountedString::TakeString(&data);
 
     scoped_refptr<ImageDecoder> image_decoder = new ImageDecoder(
         this, raw_icon_->data(), ImageDecoder::DEFAULT_CODEC);
     image_decoder->Start(task_runner_);
   }
 
@@ skipping 311 matching lines @@
                                                icon_url,
                                                GetRequestContextGetter());
 }
 
 void KioskAppData::OnWebstoreResponseParseFailure(const std::string& error) {
   webstore_fetcher_.reset();
   SetStatus(STATUS_ERROR);
 }
 
 }  // namespace chromeos