Move more string_util functions to base namespace.

extensions/browser/api/vpn_provider/vpn_provider_api.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/browser/api/vpn_provider/vpn_provider_api.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 14 matching lines @@
 const char kCIDRSeperator[] = "/";
 
 bool CheckIPCIDRSanity(const std::string& value, bool cidr, bool ipv6) {
   int dots = ipv6 ? 0 : 3;
   int sep = cidr ? 1 : 0;
   int colon = ipv6 ? 7 : 0;
   bool hex_allowed = ipv6;
   int counter = 0;
 
   for (const auto& elem : value) {
-    if (IsAsciiDigit(elem)) {
+    if (base::IsAsciiDigit(elem)) {
       counter++;
       continue;
     }
     if (elem == '.') {
       if (!dots)
         return false;
       dots--;
     } else if (elem == kCIDRSeperator[0]) {
       if (!sep || dots || colon == 7 || !counter)
         return false;
       // Separator observed, no more dots and colons, only digits are allowed
       // after observing separator. So setting hex_allowed to false.
       sep--;
       counter = 0;
       colon = 0;
       hex_allowed = false;
     } else if (elem == ':') {
       if (!colon)
         return false;
       colon--;
-    } else if (!hex_allowed || !IsHexDigit(elem)) {
+    } else if (!hex_allowed || !base::IsHexDigit(elem)) {
       return false;
     } else {
       counter++;
     }
   }
   return !sep && !dots && (colon < 7) && counter;
 }
 
 bool CheckIPCIDRSanityList(const std::vector<std::string>& list,
                            bool cidr,
@@ skipping 251 matching lines @@
                      SignalCallCompletionSuccess,
                  this),
       base::Bind(&VpnProviderNotifyConnectionStateChangedFunction::
                      SignalCallCompletionFailure,
                  this));
 
   return RespondLater();
 }
 
 }  // namespace extensions