Add explicit base namespace to string16 users.

chrome/common/extensions/permissions/permission_message_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 "chrome/common/extensions/permissions/permission_message_util.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/common/permissions/permission_message.h"
@@ skipping 23 matching lines @@
 }
 
 }  // namespace
 
 namespace permission_message_util {
 
 PermissionMessage CreateFromHostList(const std::set<std::string>& hosts) {
   std::vector<std::string> host_list(hosts.begin(), hosts.end());
   DCHECK(host_list.size());
   PermissionMessage::ID message_id;
-  string16 message;
-  string16 details;
+  base::string16 message;
+  base::string16 details;
 
   switch (host_list.size()) {
     case 1:
       message_id = PermissionMessage::kHosts1;
       message = l10n_util::GetStringFUTF16(IDS_EXTENSION_PROMPT_WARNING_1_HOST,
                                            UTF8ToUTF16(host_list[0]));
       break;
     case 2:
       message_id = PermissionMessage::kHosts2;
       message = l10n_util::GetStringFUTF16(IDS_EXTENSION_PROMPT_WARNING_2_HOSTS,
@@ skipping 85 matching lines @@
 
   // Build up the final vector by concatenating hosts and RCDs.
   std::set<std::string> distinct_hosts;
   for (HostVector::iterator it = hosts_best_rcd.begin();
        it != hosts_best_rcd.end(); ++it)
     distinct_hosts.insert(it->first + it->second);
   return distinct_hosts;
 }
 
 }  // namespace permission_message_util