Input type Number maximum value increase

Source/core/html/parser/HTMLParserIdioms.cpp

Index: Source/core/html/parser/HTMLParserIdioms.cpp
diff --git a/Source/core/html/parser/HTMLParserIdioms.cpp b/Source/core/html/parser/HTMLParserIdioms.cpp
index e3b143aaf2181cc7646c1968f6c36a489a533fee..c6fd8dc95c6f44abaefbea327ae141f14bc5fbd7 100644
--- a/Source/core/html/parser/HTMLParserIdioms.cpp
+++ b/Source/core/html/parser/HTMLParserIdioms.cpp
@@ -95,8 +95,7 @@ String serializeForNumberType(double number)
 
 Decimal parseToDecimalForNumberType(const String& string, const Decimal& fallbackValue)
 {
-    // See HTML5 2.5.4.3 `Real numbers.' and parseToDoubleForNumberType
-
+    // http://www.whatwg.org/specs/web-apps/current-work/#floating-point-numbers and parseToDoubleForNumberType
     // String::toDouble() accepts leading + and whitespace characters, which are not valid here.
     const UChar firstCharacter = string[0];
     if (firstCharacter != '-' && firstCharacter != '.' && !isASCIIDigit(firstCharacter))
@@ -106,11 +105,9 @@ Decimal parseToDecimalForNumberType(const String& string, const Decimal& fallbac
     if (!value.isFinite())
         return fallbackValue;
 
-    // Numbers are considered finite IEEE 754 single-precision floating point values.
-    // See HTML5 2.5.4.3 `Real numbers.'
-    // FIXME: We should use numeric_limits<double>::max for number input type.
-    const Decimal floatMax = Decimal::fromDouble(std::numeric_limits<float>::max());
-    if (value < -floatMax || value > floatMax)
+    // Numbers are considered finite IEEE 754 Double-precision floating point values.
+    const Decimal doubleMax = Decimal::fromDouble(std::numeric_limits<double>::max());
+    if (value < -doubleMax || value > doubleMax)
         return fallbackValue;
 
     // We return +0 for -0 case.
@@ -119,8 +116,7 @@ Decimal parseToDecimalForNumberType(const String& string, const Decimal& fallbac
 
 double parseToDoubleForNumberType(const String& string, double fallbackValue)
 {
-    // See HTML5 2.5.4.3 `Real numbers.'
-
+    // http://www.whatwg.org/specs/web-apps/current-work/#floating-point-numbers
     // String::toDouble() accepts leading + and whitespace characters, which are not valid here.
     UChar firstCharacter = string[0];
     if (firstCharacter != '-' && firstCharacter != '.' && !isASCIIDigit(firstCharacter))
@@ -135,9 +131,8 @@ double parseToDoubleForNumberType(const String& string, double fallbackValue)
     if (!std::isfinite(value))
         return fallbackValue;
 
-    // Numbers are considered finite IEEE 754 single-precision floating point values.
-    // See HTML5 2.5.4.3 `Real numbers.'
-    if (-std::numeric_limits<float>::max() > value || value > std::numeric_limits<float>::max())
+    // Numbers are considered finite IEEE 754 Double-precision floating point values.
+    if (-std::numeric_limits<double>::max() > value || value > std::numeric_limits<double>::max())
         return fallbackValue;
 
     // The following expression converts -0 to +0.