Implements CSSPropertyAPI for the webkit-box-flex-group property.

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp

Index: third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..458b25f785a8dbdb8f00991f6aec1333efa49ff8
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.cpp
@@ -0,0 +1,17 @@
+// Copyright 2017 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.
+
+#include "core/css/properties/CSSPropertyAPIWebkitBoxFlexGroup.h"
+
+#include "core/css/parser/CSSPropertyParserHelpers.h"
+
+namespace blink {
+
+const CSSValue* CSSPropertyAPIWebkitBoxFlexGroup::parseSingleValue(
+    CSSParserTokenRange& range,
+    const CSSParserContext* context) {
+  return CSSPropertyParserHelpers::consumeInteger(range, 0);
+}
+
+}  // namespace blink