-webkit-box-ordinal-group cannot exceed the keyspace for a HashSet

third_party/WebKit/Source/core/style/ComputedStyle.h

Index: third_party/WebKit/Source/core/style/ComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.h b/third_party/WebKit/Source/core/style/ComputedStyle.h
index 2492fa297e652d28905631df3c1f2a6928776c97..4df9164982d972065a91bd033e43350ea1e6401a 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -981,7 +981,8 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
   }
   void setBoxOrdinalGroup(unsigned og) {
     SET_NESTED_VAR(m_rareNonInheritedData, m_deprecatedFlexibleBox,
-                   ordinalGroup, og);
+                   ordinalGroup,
+                   std::min(std::numeric_limits<unsigned>::max() - 1, og));
   }
 
   // -webkit-box-orient