Instrumented libraries: attempt to fix a deadlock in libxcb1.

third_party/instrumented_libraries/instrumented_libraries.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'verbose_libraries_build%': 0,
     'instrumented_libraries_jobs%': 1,
   },
 
@@ skipping 303 matching lines @@
     },
     {
       'package_name': 'libxau6',
       'dependencies=': [],
       'includes': ['standard_instrumented_package_target.gypi'],
     },
     {
       'package_name': 'libxcb1',
       'dependencies=': [],
       'extra_configure_flags': ['--disable-build-docs'],
+      'conditions': [
+        ['"<(_ubuntu_release)"=="precise"', {
+          # Backport fix for https://bugs.freedesktop.org/show_bug.cgi?id=54671
+          'patch': 'patches/libxcb1.precise.diff',
+        }],
+      ],
       # Required on Trusty due to autoconf version mismatch.
       'run_before_build': 'scripts/autoreconf.sh',
       'includes': ['standard_instrumented_package_target.gypi'],
     },
     {
       'package_name': 'libxcomposite1',
       'dependencies=': [],
       'includes': ['standard_instrumented_package_target.gypi'],
     },
     {
@@ skipping 364 matching lines @@
       'package_name': 'libva1',
       'dependencies=': [],
       # Backport a use-after-free fix:
       # http://cgit.freedesktop.org/libva/diff/va/va.c?h=staging&id=d4988142a3f2256e38c5c5cdcdfc1b4f5f3c1ea9
       'patch': 'patches/libva1.diff',
       'run_before_build': 'scripts/libva1.sh',
       'includes': ['standard_instrumented_package_target.gypi'],
     },
   ],
 }