Move ReadFileToString to the base namespace.

chrome/browser/diagnostics/recon_diagnostics.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/diagnostics/recon_diagnostics.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/json/json_reader.h"
@@ skipping 185 matching lines @@
                     "Cannot obtain file size");
       return true;
     }
 
     if (file_size > max_file_size_) {
       RecordFailure(DIAG_RECON_FILE_TOO_BIG, "File too big");
       return true;
     }
     // Being small enough, we can process it in-memory.
     std::string json_data;
-    if (!file_util::ReadFileToString(path_, &json_data)) {
+    if (!base::ReadFileToString(path_, &json_data)) {
       RecordFailure(DIAG_RECON_UNABLE_TO_OPEN_FILE,
                     "Could not open file. Possibly locked by another process");
       return true;
     }
 
     JSONStringValueSerializer json(json_data);
     int error_code = base::JSONReader::JSON_NO_ERROR;
     std::string error_message;
     scoped_ptr<Value> json_root(json.Deserialize(&error_code, &error_message));
     if (base::JSONReader::JSON_NO_ERROR != error_code) {
@@ skipping 212 matching lines @@
 
 DiagnosticsTest* MakeResourcesFileTest() {
   return new PathTest(kPathsToTest[2]);
 }
 
 DiagnosticsTest* MakeUserDirTest() { return new PathTest(kPathsToTest[3]); }
 
 DiagnosticsTest* MakeVersionTest() { return new VersionTest(); }
 
 }  // namespace diagnostics