Disable warnings failing when using Clang on Windows

webrtc/test/webrtc_test_common.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',
@@ skipping 97 matching lines @@
           ],
         }],
         ['OS=="win"', {
           'sources!': [
             'null_platform_renderer.cc',
           ],
           'include_dirs': [
             '<(directx_sdk_path)/Include',
           ],
         }],
+        ['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-bool-conversion',
+                '-Wno-comment',
+                '-Wno-delete-non-virtual-dtor',
+              ],
+            },
+          },
+        }],
       ],
       'dependencies': [
         '<(DEPTH)/testing/gtest.gyp:gtest',
         '<(webrtc_root)/modules/modules.gyp:media_file',
         '<(webrtc_root)/test/test.gyp:frame_generator',
         '<(webrtc_root)/test/test.gyp:test_support',
       ],
       'direct_dependent_settings': {
         'conditions': [
           ['OS=="linux"', {
@@ skipping 38 matching lines @@
             'fake_network_pipe_unittest.cc',
             'frame_generator_unittest.cc',
             'rtp_file_reader_unittest.cc',
             'rtp_file_writer_unittest.cc',
           ],
         },
       ],  #targets
     }],  # include_tests
   ],  # conditions
 }