Add more string_util functions to base namespace.

extensions/common/error_utils.cc

 // Copyright (c) 2011 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 "extensions/common/error_utils.h"
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 
 namespace extensions {
 
 std::string ErrorUtils::FormatErrorMessage(const std::string& format,
                                            const std::string& s1) {
   std::string ret_val = format;
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
   return ret_val;
 }
 
 std::string ErrorUtils::FormatErrorMessage(const std::string& format,
                                            const std::string& s1,
                                            const std::string& s2) {
   std::string ret_val = format;
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s2);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s2);
   return ret_val;
 }
 
 std::string ErrorUtils::FormatErrorMessage(const std::string& format,
                                            const std::string& s1,
                                            const std::string& s2,
                                            const std::string& s3) {
   std::string ret_val = format;
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s2);
-  ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s3);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s1);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s2);
+  base::ReplaceFirstSubstringAfterOffset(&ret_val, 0, "*", s3);
   return ret_val;
 }
 
 base::string16 ErrorUtils::FormatErrorMessageUTF16(const std::string& format,
                                                    const std::string& s1) {
   return base::UTF8ToUTF16(FormatErrorMessage(format, s1));
 }
 
 base::string16 ErrorUtils::FormatErrorMessageUTF16(const std::string& format,
                                                    const std::string& s1,
                                                    const std::string& s2) {
   return base::UTF8ToUTF16(FormatErrorMessage(format, s1, s2));
 }
 
 base::string16 ErrorUtils::FormatErrorMessageUTF16(const std::string& format,
                                                    const std::string& s1,
                                                    const std::string& s2,
                                                    const std::string& s3) {
   return base::UTF8ToUTF16(FormatErrorMessage(format, s1, s2, s3));
 }
 
 }  // namespace extensions