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diff --git a/chromium/third_party/blink/renderer/build/scripts/core/css/templates/style_property_shorthand.h.tmpl b/chromium/third_party/blink/renderer/build/scripts/core/css/templates/style_property_shorthand.h.tmpl
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+++ b/chromium/third_party/blink/renderer/build/scripts/core/css/templates/style_property_shorthand.h.tmpl
@@ -0,0 +1,79 @@
+/*
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+{% from 'templates/macros.tmpl' import source_files_for_generated_file %}
+{{source_files_for_generated_file(template_file, input_files)}}
+
+#ifndef BLINK_CORE_STYLE_PROPERTY_SHORTHAND_H_
+#define BLINK_CORE_STYLE_PROPERTY_SHORTHAND_H_
+
+#include "css_property_names.h"
+#include "third_party/blink/renderer/core/css/properties/css_property.h"
+#include "third_party/blink/renderer/platform/wtf/vector.h"
+
+namespace blink {
+
+class StylePropertyShorthand {
+    USING_FAST_MALLOC(StylePropertyShorthand);
+ public:
+  constexpr StylePropertyShorthand()
+      : m_properties(0),
+        m_length(0),
+        m_shorthandID(CSSPropertyInvalid) {}
+
+  constexpr StylePropertyShorthand(CSSPropertyID id,
+                                   const CSSProperty** properties,
+                                   unsigned numProperties)
+      : m_properties(properties),
+        m_length(numProperties),
+        m_shorthandID(id) {}
+
+  const CSSProperty** properties() const { return m_properties; }
+  unsigned length() const { return m_length; }
+  CSSPropertyID id() const { return m_shorthandID; }
+
+ private:
+  const CSSProperty** m_properties;
+  unsigned m_length;
+  CSSPropertyID m_shorthandID;
+};
+
+{% for property in properties %}
+const StylePropertyShorthand& {{property.lower_camel_name}}Shorthand();
+{% endfor %}
+
+const StylePropertyShorthand& animationShorthandForParsing();
+const StylePropertyShorthand& transitionShorthandForParsing();
+
+// Returns an empty list if the property is not a shorthand.
+const StylePropertyShorthand& shorthandForProperty(CSSPropertyID);
+
+// Return the list of shorthands for a given longhand.
+// The client must pass in an empty result vector.
+void getMatchingShorthandsForLonghand(
+    CSSPropertyID, Vector<StylePropertyShorthand, 4>* result);
+
+unsigned indexOfShorthandForLonghand(CSSPropertyID,
+                                     const Vector<StylePropertyShorthand, 4>&);
+
+} // namespace blink
+
+#endif // BLINK_CORE_STYLE_PROPERTY_SHORTHAND_H_