Move JoinString to the base namespace

extensions/common/permissions/socket_permission_entry.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 "extensions/common/permissions/socket_permission_entry.h"
 
 #include <cstdlib>
 #include <sstream>
 #include <vector>
 
@@ skipping 160 matching lines @@
     std::vector<std::string> host_components;
     base::SplitString(result.pattern_.host, kDot, &host_components);
     DCHECK(!host_components.empty());
 
     if (host_components[0] == kWildcard || host_components[0].empty()) {
       host_components.erase(host_components.begin(),
                             host_components.begin() + 1);
     } else {
       result.match_subdomains_ = false;
     }
-    result.pattern_.host = JoinString(host_components, kDot);
+    result.pattern_.host = base::JoinString(host_components, ".");
   }
 
   if (pattern_tokens.size() == 1 || pattern_tokens[1].empty() ||
       pattern_tokens[1] == kWildcard) {
     *entry = result;
     return true;
   }
 
   if (StartsOrEndsWithWhitespace(pattern_tokens[1]))
     return false;
@@ skipping 23 matching lines @@
 
   if (pattern_.port == kWildcardPortNumber)
     result.append(1, kColon).append(kWildcard);
   else
     result.append(1, kColon).append(base::IntToString(pattern_.port));
 
   return result;
 }
 
 }  // namespace extensions