Move ReadFileToString to the base namespace.

base/test/gtest_xml_util.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 "base/test/gtest_xml_util.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/test_launcher.h"
@@ skipping 75 matching lines @@
   fprintf(output_file_, "  </testsuite>\n");
   fflush(output_file_);
 }
 
 bool ProcessGTestOutput(const base::FilePath& output_file,
                         std::vector<TestResult>* results,
                         bool* crashed) {
   DCHECK(results);
 
   std::string xml_contents;
-  if (!file_util::ReadFileToString(output_file, &xml_contents))
+  if (!ReadFileToString(output_file, &xml_contents))
     return false;
 
   // Silence XML errors - otherwise they go to stderr.
   std::string xml_errors;
   ScopedXmlErrorFunc error_func(&xml_errors, &XmlErrorFunc);
 
   XmlReader xml_reader;
   if (!xml_reader.Load(xml_contents))
     return false;
 
@@ skipping 106 matching lines @@
         // format.
         return false;
     }
   }
 
   *crashed = (state != STATE_END);
   return true;
 }
 
 }  // namespace base