Disable warnings failing when using Clang on Windows

webrtc/base/base_tests.gyp

 # Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 {
   'includes': [ '../build/common.gypi', ],
   'targets': [
@@ skipping 116 matching lines @@
               'win32regkey_unittest.cc',
               'win32window_unittest.cc',
               'win32windowpicker_unittest.cc',
               'winfirewall_unittest.cc',
             ],
             'sources!': [
               # TODO(pbos): Reenable this test.
               'win32windowpicker_unittest.cc',
             ],
           }],
+          ['OS=="win" and clang==1', {
+            'msvs_settings': {
+              'VCCLCompilerTool': {
+                'AdditionalOptions': [
+                  # Disable warnings failing when compiling with Clang on Windows.
+                  # https://bugs.chromium.org/p/webrtc/issues/detail?id=5366
+                  '-Wno-missing-braces',
+                  '-Wno-unused-const-variable',
+                ],
+              },
+            },
+          }],
           ['OS=="mac"', {
             'sources': [
               'macutils_unittest.cc',
             ],
           }],
           ['os_posix==1', {
             'sources': [
               'ssladapter_unittest.cc',
               'sslidentity_unittest.cc',
               'sslstreamadapter_unittest.cc',
             ],
           }],
           ['OS=="ios" or (OS=="mac" and target_arch!="ia32")', {
             'defines': [
               'CARBON_DEPRECATED=YES',
             ],
           }],
         ],  # conditions
       },
     },
   ],
 }