libyuv: Make Windows trybots also build with VS2013.

scripts/slave/recipe_modules/libyuv/builders.py

Index: scripts/slave/recipe_modules/libyuv/builders.py
diff --git a/scripts/slave/recipe_modules/libyuv/builders.py b/scripts/slave/recipe_modules/libyuv/builders.py
index cac8be00c956bd3b6ffd40f925b58caaf041b4cc..c05a15df52dbaff2b7acf40570293451fed64898 100644
--- a/scripts/slave/recipe_modules/libyuv/builders.py
+++ b/scripts/slave/recipe_modules/libyuv/builders.py
@@ -428,6 +428,7 @@ BUILDERS = freeze({
     'builders': {
       'win': {
         'recipe_config': 'libyuv',
+        'chromium_apply_config': ['msvs2013'],
         'chromium_config_kwargs': {
           'BUILD_CONFIG': 'Debug',
           'TARGET_BITS': 32,
@@ -437,6 +438,7 @@ BUILDERS = freeze({
       },
       'win_rel': {
         'recipe_config': 'libyuv',
+        'chromium_apply_config': ['msvs2013'],
         'chromium_config_kwargs': {
           'BUILD_CONFIG': 'Release',
           'TARGET_BITS': 32,
@@ -446,6 +448,7 @@ BUILDERS = freeze({
       },
       'win_x64_rel': {
         'recipe_config': 'libyuv',
+        'chromium_apply_config': ['msvs2013'],
         'chromium_config_kwargs': {
           'BUILD_CONFIG': 'Release',
           'TARGET_BITS': 64,