Do not build libpng when instrumenting libraries with ThreadSanitizer

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 84 matching lines @@
         ['asan==1', {
           'dependencies': [
             '<(_sanitizer_type)-libpixman-1-0',
           ],
         }],
         ['msan==1', {
           'dependencies': [
             '<(_sanitizer_type)-libcups2',
           ],
         }],
+        ['tsan==1', {
+          'dependencies!': [
+            '<(_sanitizer_type)-libpng12-0',
+          ],
+        }],
       ],
       'actions': [
         {
           'action_name': 'fix_rpaths',
           'inputs': [
             'fix_rpaths.sh',
           ],
           'outputs': [
             '<(PRODUCT_DIR)/instrumented_libraries/<(_sanitizer_type)/rpaths.fixed.txt',
           ],
@@ skipping 357 matching lines @@
           # a just-built binary and crashes. Vala requires introspection.
           # TODO(earthdok): find a better fix.
           '--disable-introspection',
           '--disable-vala',
       ],
       'dependencies=': [],
       'includes': ['standard_instrumented_library_target.gypi'],
     },
   ],
 }