Switch usage of _DEBUG macro to NDEBUG.

webrtc/base/network.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 493 matching lines @@
   if (ret != ERROR_SUCCESS) {
     return false;
   }
   int count = 0;
   while (adapter_addrs) {
     if (adapter_addrs->OperStatus == IfOperStatusUp) {
       PIP_ADAPTER_UNICAST_ADDRESS address = adapter_addrs->FirstUnicastAddress;
       PIP_ADAPTER_PREFIX prefixlist = adapter_addrs->FirstPrefix;
       std::string name;
       std::string description;
-#ifdef _DEBUG
+#if !defined(NDEBUG)
       name = ToUtf8(adapter_addrs->FriendlyName,
                     wcslen(adapter_addrs->FriendlyName));
 #endif
       description = ToUtf8(adapter_addrs->Description,
                            wcslen(adapter_addrs->Description));
       for (; address; address = address->Next) {
-#ifndef _DEBUG
+#if defined(NDEBUG)
         name = rtc::ToString(count);
 #endif
 
         IPAddress ip;
         int scope_id = 0;
         scoped_ptr<Network> network;
         switch (address->Address.lpSockaddr->sa_family) {
           case AF_INET: {
             sockaddr_in* v4_addr =
                 reinterpret_cast<sockaddr_in*>(address->Address.lpSockaddr);
@@ skipping 313 matching lines @@
   std::stringstream ss;
   // Print out the first space-terminated token of the network desc, plus
   // the IP address.
   ss << "Net[" << description_.substr(0, description_.find(' '))
      << ":" << prefix_.ToSensitiveString() << "/" << prefix_length_
      << ":" << AdapterTypeToString(type_) << "]";
   return ss.str();
 }
 
 }  // namespace rtc