win: Disable some more warnings when not building with Crashpad's common.gypi

build/crashpad.gypi

 # Copyright 2015 The Crashpad Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
 {
   'variables': {
     # When building as a part of Chromium, this variable sets up the build to
     # treat Crashpad as Chromium code. This enables warnings at an appropriate
     # level and applies Chromium’s build/filename_rules.gypi. In a standalone
     # build, this variable has no effect.
     'chromium_code': 1,
   },
+  'target_defaults': {
+    'msvs_disabled_warnings': [
+      4201,  # nonstandard extension used : nameless struct/union.
+      4324,  # structure was padded due to __declspec(align()).
+    ],
+  },
 }