Move ReadFileToString to the base namespace.

chrome/browser/chromeos/login/oobe_browsertest.cc

 // Copyright (c) 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 "base/command_line.h"
 #include "base/path_service.h"
 #include "chrome/browser/chrome_browser_main.h"
 #include "chrome/browser/chrome_browser_main_extra_parts.h"
 #include "chrome/browser/chrome_content_browser_client.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 127 matching lines @@
     command_line->AppendSwitchASCII(
         chromeos::switches::kAuthExtensionPath, "gaia_auth");
   }
 
   virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
     content_browser_client_.reset(new TestContentBrowserClient());
     original_content_browser_client_ = content::SetBrowserClientForTesting(
         content_browser_client_.get());
     base::FilePath test_data_dir;
     PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir);
-    CHECK(file_util::ReadFileToString(test_data_dir.Append(kServiceLogin),
-                                      &service_login_response_));
+    CHECK(base::ReadFileToString(test_data_dir.Append(kServiceLogin),
+                                 &service_login_response_));
   }
 
   virtual void SetUpOnMainThread() OVERRIDE {
     test_server_ = new EmbeddedTestServer(
         content::BrowserThread::GetMessageLoopProxyForThread(
             content::BrowserThread::IO));
     CHECK(test_server_->InitializeAndWaitUntilReady());
     test_server_->RegisterRequestHandler(
         base::Bind(&OobeTest::HandleRequest, base::Unretained(this)));
     LOG(INFO) << "Set up http server at " << test_server_->base_url();
@@ skipping 53 matching lines @@
   wizard_controller->SkipToLoginForTesting();
 
   scoped_refptr<content::MessageLoopRunner> runner =
       new content::MessageLoopRunner;
   content_browser_client_->browser_main_extra_parts_->set_quit_task(
       runner->QuitClosure());
   runner->Run();
 }
 
 }  // namespace