Fix compiling of sync on linux.

chrome/browser/sync/notifier/gaia_auth/gaiaauth.cc

 // Copyright (c) 2009 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 <string>
 
 #include "chrome/browser/sync/notifier/gaia_auth/gaiaauth.h"
 #include "talk/base/asynchttprequest.h"
 #include "talk/base/firewallsocketserver.h"
 #include "talk/base/httpclient.h"
 #include "talk/base/logging.h"
 #include "talk/base/physicalsocketserver.h"
 #include "talk/base/signalthread.h"
 #include "talk/base/socketadapters.h"
 #include "talk/base/socketpool.h"
 #include "talk/base/stringutils.h"
 #include "talk/base/urlencode.h"
 #include "talk/xmpp/saslcookiemechanism.h"
 #include "talk/xmpp/saslplainmechanism.h"
 
 namespace buzz {
 
 static const int kGaiaAuthTimeoutMs = 30 * 1000;  // 30 sec
 
 // Warning, this is externed.
-GaiaServer buzz::g_gaia_server;
+GaiaServer g_gaia_server;
 
 ///////////////////////////////////////////////////////////////////////////////
 // GaiaAuth::WorkerThread
 ///////////////////////////////////////////////////////////////////////////////
 
 // GaiaAuth is NOT invoked during SASL authentication, but it is invoked even
 // before XMPP login begins.  As a PreXmppAuth object, it is driven by
 // XmppClient before the XMPP socket is opened.  The job of GaiaAuth is to goes
 // out using HTTPS POST to grab cookies from GAIA.
 //
@@ skipping 394 matching lines @@
 }
 
 buzz::CaptchaChallenge GaiaAuth::GetCaptchaChallenge() {
   if (!done_ || worker_->Succeeded()) {
     return buzz::CaptchaChallenge();
   }
   return worker_->GetCaptchaChallenge();
 }
 
 }  // namespace buzz