Disallow hashless hex color quirk for non integer <number>

LayoutTests/fast/css/parsing-color-quirk.html

Index: LayoutTests/fast/css/parsing-color-quirk.html
diff --git a/LayoutTests/fast/css/parsing-color-quirk.html b/LayoutTests/fast/css/parsing-color-quirk.html
index 1ac0dbbb486f94ae0554de75f097584df9734c03..9e68fad4327567b225b22b644d0ffce5e8ac1726 100644
--- a/LayoutTests/fast/css/parsing-color-quirk.html
+++ b/LayoutTests/fast/css/parsing-color-quirk.html
@@ -36,12 +36,18 @@
 #t27 { border-right: ff0000 }
 #t28 { border-bottom: ff0000 }
 #t29 { border: ff0000 }
+
+#t30 { background-color: 1.1 }
+#t31 { background-color: +1.1 }
+#t32 { background-color: 1e1 }
+#t33 { background-color: 1e+1 }
+#t34 { background-color: 1e-1 }
 </style>
 <script>
 var sheet = document.styleSheets[0];
 
 test(function(){ assert_true(!!sheet); }, "StyleSheet present");
-test(function(){ assert_equals(sheet.cssRules.length, 29); }, "All rules parsed");
+test(function(){ assert_equals(sheet.cssRules.length, 34); }, "All rules parsed");
 
 test(function(){
     assert_equals(sheet.cssRules[0].style.color, "rgb(0, 128, 0)");
@@ -158,4 +164,25 @@ test(function(){
 test(function(){
     assert_equals(sheet.cssRules[28].style.borderTopColor, "");
 }, "No hashless color quirk for border shorthand");
+
+test(function(){
+    assert_equals(sheet.cssRules[29].style.backgroundColor, "");
+}, "No hashless color quirk for background-color property with invalid hashless value");
+
+test(function(){
+    assert_equals(sheet.cssRules[30].style.backgroundColor, "");
+}, "No hashless color quirk for background-color property with invalid hashless value");
+
+test(function(){
+    assert_equals(sheet.cssRules[31].style.backgroundColor, "");
+}, "No hashless color quirk for background-color property with invalid hashless value");
+
+test(function(){
+    assert_equals(sheet.cssRules[32].style.backgroundColor, "");
+}, "No hashless color quirk for background-color property with invalid hashless value");
+
+test(function(){
+    assert_equals(sheet.cssRules[33].style.backgroundColor, "");
+}, "No hashless color quirk for background-color property with invalid hashless value");
+
 </script>