win: Move NTDDI_VERSION into winver, stop setting it for usrsctp

third_party/usrsctp/usrsctp.gyp

 # 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.
 {
   'variables': {
     'libsctp_target_type%': 'static_library',
   },
   'target_defaults': {
     'defines': [
       'SCTP_PROCESS_LEVEL_LOCKS',
@@ skipping 88 matching lines @@
       'variables': {
         'clang_warning_flags': [
           # atomic_init in user_atomic.h is a static function in a header.
           '-Wno-unused-function',
         ],
       },
       'conditions': [
         ['OS=="linux" or OS=="android"', {
           'defines': [
             '__Userspace_os_Linux',
-            '_GNU_SOURCE'
+            '_GNU_SOURCE'
           ],
           'cflags!': [ '-Werror', '-Wall' ],
           'cflags': [ '-w' ],
         }],
         ['OS=="mac" or OS=="ios"', {
           'defines': [
             'HAVE_SA_LEN',
             'HAVE_SCONN_LEN',
             '__APPLE_USE_RFC_2292',
             '__Userspace_os_Darwin',
           ],
           # usrsctp requires that __APPLE__ is undefined for compilation (for
           # historical reasons). There is a plan to change this, and when it
           # happens and we re-roll DEPS for usrsctp, we can remove the manual
           # undefining of __APPLE__.
           'xcode_settings': {
             'OTHER_CFLAGS!': [ '-Werror', '-Wall' ],
             'OTHER_CFLAGS': [ '-U__APPLE__', '-w' ],
           },
         }],
         ['OS=="win"', {
           'defines': [
             '__Userspace_os_Windows',
-            # Manually setting WINVER and _WIN32_WINNT is needed because Chrome
-            # sets WINVER to a newer version of Windows. But compiling usrsctp
-            # this way would be incompatible with Windows XP.
-            'WINVER=0x0502',
-            '_WIN32_WINNT=0x0502',
-          ],
-          'defines!': [
-            # Remove Chrome's WINVER defines to avoid redefinition warnings.
-            'WINVER=0x0A00',
-            '_WIN32_WINNT=0x0A00',
           ],
           'cflags!': [ '/W3', '/WX' ],
           'cflags': [ '/w' ],
           # TODO(ldixon) : Remove this disabling of warnings by pushing a
           # fix upstream to usrsctp
           'msvs_disabled_warnings': [ 4002, 4013, 4133, 4267, 4313, 4700 ],
         }, {  # OS != "win",
           'defines': [
             'NON_WINDOWS_DEFINE',
           ],
         }],
       ],  # conditions
     },  # target usrsctp
   ],  # targets
 }