Instrumented libraries: fix & re-enable zlib1g build.

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.
 
 {
   # Default value for all libraries.
   'extra_configure_flags': '',
   'extra_cflags': '',
   'extra_cxxflags': '',
   'extra_ldflags': '',
@@ skipping 55 matching lines @@
         '<(_sanitizer_type)-libxdamage1',
         '<(_sanitizer_type)-libxdmcp6',
         '<(_sanitizer_type)-libxext6',
         '<(_sanitizer_type)-libxfixes3',
         '<(_sanitizer_type)-libxi6',
         '<(_sanitizer_type)-libxinerama1',
         '<(_sanitizer_type)-libxrandr2',
         '<(_sanitizer_type)-libxrender1',
         '<(_sanitizer_type)-libxss1',
         '<(_sanitizer_type)-libxtst6',
-        # https://crbug.com/313751#c110
-        #'<(_sanitizer_type)-zlib1g',
+        '<(_sanitizer_type)-zlib1g',
         '<(_sanitizer_type)-libglib2.0-0',
         '<(_sanitizer_type)-libdbus-1-3',
         '<(_sanitizer_type)-libdbus-glib-1-2',
         '<(_sanitizer_type)-nss',
         '<(_sanitizer_type)-libfontconfig1',
         '<(_sanitizer_type)-pulseaudio',
         '<(_sanitizer_type)-libasound2',
         '<(_sanitizer_type)-pango1.0',
         '<(_sanitizer_type)-libcap2',
         '<(_sanitizer_type)-libudev0',
@@ skipping 241 matching lines @@
     },
     {
       'library_name': 'libxtst6',
       'dependencies=': [],
       'extra_configure_flags': '--disable-specs',
       'includes': ['standard_instrumented_library_target.gypi'],
     },
     {
       'library_name': 'zlib1g',
       'dependencies=': [],
+      'run_before_build': 'zlib1g.sh',
       'includes': ['standard_instrumented_library_target.gypi'],
     },
     {
       'library_name': 'nss',
       'dependencies=': [
         '<(_sanitizer_type)-libnspr4',
       ],
       'run_before_build': 'nss.sh',
       'build_method': 'custom_nss',
       'includes': ['standard_instrumented_library_target.gypi'],
@@ skipping 155 matching lines @@
           '--with-gtk=3.0',
           '--disable-orbit',
           # See above.
           '--disable-introspection',
       ],
       'dependencies=': [],
       'includes': ['standard_instrumented_library_target.gypi'],
     },
   ],
 }