parsing input type=number should skip spaces

LayoutTests/fast/forms/number/number-validity-typemismatch.html

Index: LayoutTests/fast/forms/number/number-validity-typemismatch.html
diff --git a/LayoutTests/fast/forms/number/number-validity-typemismatch.html b/LayoutTests/fast/forms/number/number-validity-typemismatch.html
index ef354536dba880a6795b33e82110594df327cc47..9b257c4e4fda30c6e318b70488100d703c69fe5c 100644
--- a/LayoutTests/fast/forms/number/number-validity-typemismatch.html
+++ b/LayoutTests/fast/forms/number/number-validity-typemismatch.html
@@ -37,6 +37,8 @@ function checkSanitization(value, expectedValue)
 // Valid values
 check('0');
 check('10');
+check(' 10');

[tkent, 2014/04/14 00:47:37]

This test should not be updated.  The behavior of input.value should not be
changed.

+check('10 ');
 check('01');
 check('0.2');
 check('.2');
@@ -51,10 +53,7 @@ check('0.12345678901234567890123456789012345678901234567890');
 // Invalid values
 checkSanitization('abc', '');
 checkSanitization('0xff', '');
-
 checkSanitization('+1', '');
-checkSanitization(' 10', '');
-checkSanitization('10 ', '');
 checkSanitization('1,2', '');
 checkSanitization('1E', '');
 checkSanitization('NaN', '');