Move more string_util functions to base namespace.

net/base/net_util.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 "net/base/net_util.h"
 
 #include <errno.h>
 #include <string.h>
 
 #include <algorithm>
@@ skipping 323 matching lines @@
 
   std::multiset<int> ports;
   size_t last = 0;
   size_t size = allowed_ports.size();
   // The comma delimiter.
   const std::string::value_type kComma = ',';
 
   // Overflow is still possible for evil user inputs.
   for (size_t i = 0; i <= size; ++i) {
     // The string should be composed of only digits and commas.
-    if (i != size && !IsAsciiDigit(allowed_ports[i]) &&
+    if (i != size && !base::IsAsciiDigit(allowed_ports[i]) &&
         (allowed_ports[i] != kComma))
       return;
     if (i == size || allowed_ports[i] == kComma) {
       if (i > last) {
         int port;
         base::StringToInt(base::StringPiece(allowed_ports.begin() + last,
                                             allowed_ports.begin() + i),
                           &port);
         ports.insert(port);
       }
@@ skipping 476 matching lines @@
   };
   const std::string& host = url.host();
   for (const char* suffix : kGoogleHostSuffixes) {
     if (base::EndsWith(host, suffix, false))
       return true;
   }
   return false;
 }
 
 }  // namespace net