Get printing working in Aura.

chrome/browser/chrome_browser_main_posix.cc

 // Copyright (c) 2011 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 "chrome/browser/chrome_browser_main_posix.h"
 
 #include <errno.h>
 #include <limits.h>
 #include <signal.h>
 #include <sys/resource.h>
@@ skipping 241 matching lines @@
   // Also handle SIGINT - when the user terminates the browser via Ctrl+C. If
   // the browser process is being debugged, GDB will catch the SIGINT first.
   action.sa_handler = SIGINTHandler;
   CHECK(sigaction(SIGINT, &action, NULL) == 0);
   // And SIGHUP, for when the terminal disappears. On shutdown, many Linux
   // distros send SIGHUP, SIGTERM, and then SIGKILL.
   action.sa_handler = SIGHUPHandler;
   CHECK(sigaction(SIGHUP, &action, NULL) == 0);
 
 #if defined(TOOLKIT_USES_GTK) && !defined(OS_CHROMEOS)
-  printing::PrintingContextCairo::SetCreatePrintDialogFunction(
+  printing::PrintingContextGtk::SetCreatePrintDialogFunction(
       &PrintDialogGtk::CreatePrintDialog);
 #endif
 }