X11: Make the default X11 error handler non-fatal.

app/x11_util.cc

 // Copyright (c) 2010 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.
 
 // This file defines utility functions for X11 (Linux only). This code has been
 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support
 // remains woefully incomplete.
 
 #include "app/x11_util.h"
 
@@ skipping 38 matching lines @@
   static CachedPictFormats* formats = NULL;
   if (!formats)
     formats = new CachedPictFormats();
   return formats;
 }
 
 // Maximum number of CachedPictFormats we keep around.
 const size_t kMaxCacheSize = 5;
 
 int DefaultX11ErrorHandler(Display* d, XErrorEvent* e) {
-  LOG(FATAL) << GetErrorEventDescription(d, e);
+  LOG(ERROR) << GetErrorEventDescription(d, e);
   return 0;
 }
 
 int DefaultX11IOErrorHandler(Display* d) {
   // If there's an IO error it likely means the X server has gone away
   LOG(ERROR) << "X IO Error detected";
   _exit(1);
 }
 
 }  // namespace
@@ skipping 801 matching lines @@
       "X Error detected: serial %lu, error_code %u (%s), "
       "request_code %u minor_code %u (%s)",
       error_event->serial, error_event->error_code, error_str,
       error_event->request_code, error_event->minor_code, request_str);
 }
 // ----------------------------------------------------------------------------
 // End of x11_util_internal.h
 
 
 }  // namespace x11_util