A blind fix for Bug 70870...

ui/base/x/x11_util.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.
 
 // 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 "ui/base/x/x11_util.h"
 
@@ skipping 423 matching lines @@
   return EnumerateChildren(delegate, root, max_depth, 0);
 }
 
 bool GetXWindowStack(Window window, std::vector<XID>* windows) {
   windows->clear();
 
   Atom type;
   int format;
   unsigned long count;
   unsigned char *data = NULL;
-  if (!GetProperty(window,
-                   "_NET_CLIENT_LIST_STACKING",
-                   ~0L,
-                   &type,
-                   &format,
-                   &count,
-                   &data)) {
+  if (GetProperty(window,
+                  "_NET_CLIENT_LIST_STACKING",
+                  ~0L,
+                  &type,
+                  &format,
+                  &count,
+                  &data) != Success) {
     return false;
   }
 
   bool result = false;
   if (type == XA_WINDOW && format == 32 && data && count > 0) {
     result = true;
     XID* stack = reinterpret_cast<XID*>(data);
     for (long i = static_cast<long>(count) - 1; i >= 0; i--)
       windows->push_back(stack[i]);
   }
@@ skipping 454 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 ui