Switch usage of _DEBUG macro to NDEBUG.

webrtc/libjingle/xmpp/xmppclient.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 344 matching lines @@
     }
 
     if (!socket_->Read(bytes, sizeof(bytes), &bytes_read)) {
       // TODO: deal with error information
       return;
     }
 
     if (bytes_read == 0)
       return;
 
-//#ifdef _DEBUG
+//#if !defined(NDEBUG)
     client_->SignalLogInput(bytes, static_cast<int>(bytes_read));
 //#endif
 
     engine_->HandleInput(bytes, bytes_read);
   }
 }
 
 void XmppClient::Private::OnSocketClosed() {
   int code = socket_->GetError();
   engine_->ConnectionClosed(code);
 }
 
 void XmppClient::Private::OnStateChange(int state) {
   if (state == XmppEngine::STATE_CLOSED) {
     client_->EnsureClosed();
   }
   else {
     client_->SignalStateChange((XmppEngine::State)state);
   }
   client_->Wake();
 }
 
 void XmppClient::Private::WriteOutput(const char* bytes, size_t len) {
-//#ifdef _DEBUG
+//#if !defined(NDEBUG)
   client_->SignalLogOutput(bytes, static_cast<int>(len));
 //#endif
 
   socket_->Write(bytes, len);
   // TODO: deal with error information
 }
 
 void XmppClient::Private::StartTls(const std::string& domain) {
 #if defined(FEATURE_ENABLE_SSL)
   socket_->StartTls(domain);
@@ skipping 15 matching lines @@
 void XmppClient::EnsureClosed() {
   if (!d_->signal_closed_) {
     d_->signal_closed_ = true;
     delivering_signal_ = true;
     SignalStateChange(XmppEngine::STATE_CLOSED);
     delivering_signal_ = false;
   }
 }
 
 }  // namespace buzz