Move ReadFileToString to the base namespace.

chrome/browser/extensions/extension_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 "chrome/browser/extensions/extension_browsertest.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 202 matching lines @@
                                 kFlagEnableFileAccess | kFlagEnableIncognito);
 }
 
 const Extension* ExtensionBrowserTest::LoadExtensionAsComponentWithManifest(
     const base::FilePath& path,
     const base::FilePath::CharType* manifest_relative_path) {
   ExtensionService* service = extensions::ExtensionSystem::Get(
       profile())->extension_service();
 
   std::string manifest;
-  if (!file_util::ReadFileToString(path.Append(manifest_relative_path),
-                                   &manifest)) {
+  if (!base::ReadFileToString(path.Append(manifest_relative_path), &manifest)) {
     return NULL;
   }
 
   std::string extension_id = service->component_loader()->Add(manifest, path);
   const Extension* extension = service->extensions()->GetByID(extension_id);
   if (!extension)
     return NULL;
   last_loaded_extension_id_ = extension->id();
   return extension;
 }
@@ skipping 521 matching lines @@
     case content::NOTIFICATION_WEB_CONTENTS_DESTROYED:
       VLOG(1) << "Got LOAD_STOP or WEB_CONTENTS_DESTROYED notification.";
       base::MessageLoopForUI::current()->Quit();
       break;
 
     default:
       NOTREACHED();
       break;
   }
 }