Improve numeric value handling in CSS Parser

third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp b/third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp
index 354b483ef52385ddbad04dfb8523aac5b67b97c0..1bb13ac6abfcce448c0137216444ebb5ffb74e89 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSParserFastPaths.cpp
@@ -87,7 +87,10 @@ static inline bool parseSimpleLength(const CharacterType* characters, unsigned l
     // not represent a double.
     bool ok;
     number = charactersToDouble(characters, length, &ok);
-    return ok && CSSParserToken::isValidNumericValue(number);
+    if (!ok)
+        return false;
+    number = clampTo<double>(number, -std::numeric_limits<float>::max(), std::numeric_limits<float>::max());
+    return true;
 }
 
 static CSSValue* parseSimpleLengthValue(CSSPropertyID propertyId, const String& string, CSSParserMode cssParserMode)