Don't #define snprintf in VS 2015 builds.

third_party/libexif/libexif.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': {
     'conditions': [
       ['OS == "linux" and chromeos==0', {
         'use_system_libexif%': 1,
       }, {  # OS != "linux" and chromeos==0
@@ skipping 65 matching lines @@
               ],
               'xcode_settings': {
                 'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO', # no -fvisibility=hidden
               },
             }],
             ['OS=="win"', {
               'product_name': 'libexif',
               'sources': [
                 'libexif.def',
               ],
+              'conditions': [
+                ['MSVS_VERSION < "2015"', {
+                  'defines': [
+                    # This seems like a hack, but this is what Safari Win does.
+                    # Luckily it is no longer needed/allowed with VS 2015.
+                    'snprintf=_snprintf',
+                  ],
+                }],
+              ],
               'defines': [
-                # This seems like a hack, but this is what WebKit Win does.
-                'snprintf=_snprintf',
                 'inline=__inline',
               ],
               'msvs_disabled_warnings': [
                 4018, # size/unsigned mismatch
                 4267, # size_t -> ExifLong truncation on amd64
               ],
               # As of VS 2013 Update 3, building this project with /analyze hits
               # an internal compiler error on exif-entry.c. This halts the build
               # and prevents subsequent analysis. Therefore, /analyze is
               # disabled for this project. See this bug for details:
@@ skipping 29 matching lines @@
             ],
             'defines': [
               'USE_SYSTEM_LIBEXIF',
             ],
           },
         }
       ],
     }],
   ]
 }