Make component_unittests build on Win64

components/components_tests.gypi

 # Copyright (c) 2012 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.
 
 {
   'conditions': [
     ['OS != "ios"', {
       'targets': [
         {
           'target_name': 'components_unittests',
@@ skipping 30 matching lines @@
               'dependencies': [
                 '../testing/android/native_test.gyp:native_test_native_code',
               ]
             }],
             ['OS=="win" and win_use_allocator_shim==1', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
             }],
           ],
+          # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
+          'msvs_disabled_warnings': [4267, ],
         }
       ],
       'conditions': [
         ['OS == "android" and gtest_target_type == "shared_library"', {
           'targets': [
             {
               'target_name': 'components_unittests_apk',
               'type': 'none',
               'dependencies': [
                 'components_unittests',
               ],
               'variables': {
                 'test_suite_name': 'components_unittests',
                 'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)components_unittests<(SHARED_LIB_SUFFIX)',
               },
               'includes': [ '../build/apk_test.gypi' ],
             },
           ],
         }],
       ],
     }],
   ],
 }