Add default options/suppressions for LeakSanitizer.

build/sanitizers/sanitizers.gyp

 # Copyright 2014 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.
 
 {
   'targets': [
     {
       'target_name': 'sanitizer_options',
       'type': 'static_library',
       'toolsets': ['host', 'target'],
@@ skipping 18 matching lines @@
         ['use_custom_libcxx==1', {
           'dependencies!': [
             '../../buildtools/third_party/libc++/libc++.gyp:libcxx_proxy',
           ],
         }],
         ['tsan==1', {
           'sources': [
             'tsan_suppressions.cc',
           ],
         }],
+        ['lsan==1', {
+          'sources': [
+            'lsan_suppressions.cc',
+          ],
+        }],
       ],
       'cflags/': [
         ['exclude', '-fsanitize='],
         ['exclude', '-fsanitize-'],
       ],
       'direct_dependent_settings': {
         'ldflags': [
           '-Wl,-u_sanitizer_options_link_helper',
         ],
         'target_conditions': [
@@ skipping 24 matching lines @@
             'files': [
               '<(llvm_symbolizer_path)',
             ],
           }],
         }],
       ],
     },
   ],
 }