Instrumented libraries: partially fix pulseaudio build on Trusty.

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 400 matching lines @@
         # TODO(earthdok): get rid of this dependency
         '<(_sanitizer_type)-libnspr4',
       ],
       'patch': 'patches/nss.diff',
       'build_method': 'custom_nss',
       'includes': ['standard_instrumented_package_target.gypi'],
     },
     {
       'package_name': 'pulseaudio',
       'dependencies=': [],
-      'patch': 'patches/pulseaudio.diff',
+      'conditions': [
+        ['"<(_ubuntu_release)"=="precise"', {
+          'patch': 'patches/pulseaudio.precise.diff',
+        }],
+      ],
+      'extra_configure_flags': [
+          # From debian/rules.
+          '--enable-x11',
+          '--disable-hal-compat',
+          # Disable some ARM-related code that fails compilation. No idea why
+          # this even impacts x86-64 builds.
+          '--disable-neon-opt'
+      ],
       'run_before_build': 'scripts/pulseaudio.sh',
       'jobs': 1,
       'includes': ['standard_instrumented_package_target.gypi'],
     },
     {
       'package_name': 'libasound2',
       'dependencies=': [],
       'run_before_build': 'scripts/libasound2.sh',
       'includes': ['standard_instrumented_package_target.gypi'],
     },
@@ skipping 217 matching lines @@
       'extra_configure_flags': [
           # See above.
           '--disable-introspection',
       ],
       'dependencies=': [],
       'run_before_build': 'scripts/autogen.sh',
       'includes': ['standard_instrumented_package_target.gypi'],
     },
   ],
 }