Move more string_util functions to base namespace.

components/omnibox/history_provider.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 "components/omnibox/history_provider.h"
 
 #include <string>
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 21 matching lines @@
   history_service->DeleteURL(match.destination_url);
 
   DeleteMatchFromMatches(match);
 }
 
 // static
 bool HistoryProvider::PreventInlineAutocomplete(
     const AutocompleteInput& input) {
   return input.prevent_inline_autocomplete() ||
       (!input.text().empty() &&
-       IsWhitespace(input.text()[input.text().length() - 1]));
+       base::IsUnicodeWhitespace(input.text()[input.text().length() - 1]));
 }
 
 HistoryProvider::HistoryProvider(AutocompleteProvider::Type type,
                                  AutocompleteProviderClient* client)
     : AutocompleteProvider(type), client_(client) {
 }
 
 HistoryProvider::~HistoryProvider() {}
 
 void HistoryProvider::DeleteMatchFromMatches(const AutocompleteMatch& match) {
@@ skipping 43 matching lines @@
     do {
       offset += matches[i].length;
       ++i;
     } while ((i < match_count) && (offset == matches[i].offset));
     if (offset < text_length)
       spans.push_back(ACMatchClassification(offset, url_style));
   }
 
   return spans;
 }