Presubmit: Warn about using XSelectInput

PRESUBMIT.py

 # Copyright (c) 2012 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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 146 matching lines @@
     (
       'FRIEND_TEST(',
       (
        'Chromium code should not use gtest\'s FRIEND_TEST() macro. Include',
        'base/gtest_prod_util.h and use FRIEND_TEST_ALL_PREFIXES() instead.',
       ),
       False,
       (),
     ),
     (
+      r'XSelectInput|CWEventMask|XCB_CW_EVENT_MASK',
+      (
+       'Chrome clients wishing to select events on X windows should use',
+       'ui::XScopedEventSelector.  It is safe to ignore this warning only if',
+       'you are selecting events from the GPU process, or if you are using',
+       'an XDisplay other than gfx::GetXDisplay().',
+      ),
+      True,
+      (
+        r"^ui[\\\/]gl[\\\/].*\.cc$",
+        r"^media[\\\/]gpu[\\\/].*\.cc$",
+        r"^gpu[\\\/].*\.cc$",
+      ),
+    ),
+    (
       'ScopedAllowIO',
       (
        'New code should not use ScopedAllowIO. Post a task to the blocking',
        'pool or the FILE thread instead.',
       ),
       True,
       (
         r"^base[\\\/]process[\\\/]process_linux\.cc$",
         r"^base[\\\/]process[\\\/]process_metrics_linux\.cc$",
         r"^blimp[\\\/]engine[\\\/]app[\\\/]blimp_browser_main_parts\.cc$",
@@ skipping 2078 matching lines @@
   results.extend(input_api.canned_checks.CheckTreeIsOpen(
       input_api,
       output_api,
       json_url='http://chromium-status.appspot.com/current?format=json'))
 
   results.extend(input_api.canned_checks.CheckChangeHasBugField(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasDescription(
       input_api, output_api))
   return results