Kill WTF::DecimalNumber class

LayoutTests/css3/filters/script-tests/filter-property-computed-style.js

 description("Test the computed style of the -webkit-filter property.");
 
 // These have to be global for the test helpers to see them.
 var stylesheet, filterStyle, subRule;
 var styleElement = document.createElement("style");
 document.head.appendChild(styleElement);
 stylesheet = styleElement.sheet;
 
 function testComputedFilterRule(description, rule, expectedLength, expectedTypes, expectedTexts)
 {
@@ skipping 123 matching lines @@
                        ["hue-rotate(10deg)"]);
 
 testComputedFilterRule("Degrees float value converts to integer",
                        "hue-rotate(10.0deg)", 1,
                        ["WebKitCSSFilterValue.CSS_FILTER_HUE_ROTATE"],
                        ["hue-rotate(10deg)"]);
 
 testComputedFilterRule("Radians value",
                        "hue-rotate(10rad)", 1,
                        ["WebKitCSSFilterValue.CSS_FILTER_HUE_ROTATE"],
-                       ["hue-rotate(572.9577951308232deg)"]);
+                       ["hue-rotate(572.957795130823deg)"]);
 
 testComputedFilterRule("Gradians value",
                        "hue-rotate(10grad)", 1,
                        ["WebKitCSSFilterValue.CSS_FILTER_HUE_ROTATE"],
                        ["hue-rotate(9deg)"]);
 
 testComputedFilterRule("Turns value",
                        "hue-rotate(0.5turn)", 1,
                        ["WebKitCSSFilterValue.CSS_FILTER_HUE_ROTATE"],
                        ["hue-rotate(180deg)"]);
@@ skipping 219 matching lines @@
                           "grayscale(0.5)",
                           "sepia(0.25)",
                           "saturate(0.75)",
                           "invert(0.2)",
                           "opacity(0.9)",
                           "brightness(0.6)",
                           "contrast(0.3)"
               ]);
 
 successfullyParsed = true;