Add more string_util functions to base namespace.

components/search_engines/template_url_unittest.cc

 // Copyright 2014 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/base_paths.h"
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
@@ skipping 406 matching lines @@
       "http://foo/UTF-8a{language}aXa" },
   };
   TemplateURLData data;
   data.input_encodings.push_back("UTF-8");
   for (size_t i = 0; i < arraysize(test_data); ++i) {
     data.SetURL(test_data[i].url);
     TemplateURL url(data);
     EXPECT_TRUE(url.url_ref().IsValid(search_terms_data_));
     ASSERT_TRUE(url.url_ref().SupportsReplacement(search_terms_data_));
     std::string expected_result = test_data[i].expected_result;
-    ReplaceSubstringsAfterOffset(&expected_result, 0, "{language}",
-                                 search_terms_data_.GetApplicationLocale());
+    base::ReplaceSubstringsAfterOffset(
+        &expected_result, 0, "{language}",
+        search_terms_data_.GetApplicationLocale());
     GURL result(url.url_ref().ReplaceSearchTerms(
         TemplateURLRef::SearchTermsArgs(ASCIIToUTF16("X")),
         search_terms_data_));
     ASSERT_TRUE(result.is_valid());
     EXPECT_EQ(expected_result, result.spec());
   }
 }
 
 
 // Tests replacing search terms in various encodings and making sure the
@@ skipping 1309 matching lines @@
   EXPECT_EQ("http://bar/search?q=foo&pfq=full%20query%20text&qha=2338&xssi=t",
             result);
 
   TemplateURL url2(data);
   search_terms_args.prefetch_query.clear();
   search_terms_args.prefetch_query_type.clear();
   result =
       url2.url_ref().ReplaceSearchTerms(search_terms_args, search_terms_data_);
   EXPECT_EQ("http://bar/search?q=foo&xssi=t", result);
 }