Remove the compile time flag for DATALIST Element.

Source/core/css/html.css

Index: Source/core/css/html.css
diff --git a/Source/core/css/html.css b/Source/core/css/html.css
index 65edad76326adf89aff9c931d04dbfaeac9b2b72..5d4cf9f4afbdf5faa675932aadb8efe597ac7d34 100644
--- a/Source/core/css/html.css
+++ b/Source/core/css/html.css
@@ -481,12 +481,6 @@ input[type="search"]::-webkit-search-results-decoration {
     margin: auto 0;
 }
 
-#if defined(ENABLE_DATALIST_ELEMENT) && ENABLE_DATALIST_ELEMENT
-datalist {
-    display: none;
-}
-#endif
-
 #if defined(ENABLE_INPUT_MULTIPLE_FIELDS_UI) && ENABLE_INPUT_MULTIPLE_FIELDS_UI
 input[type="date"] {
     -webkit-align-items: center;
@@ -870,8 +864,6 @@ input[type="color"]::-webkit-color-swatch {
     -webkit-user-modify: read-only !important;
 }
 
-#if defined(ENABLE_DATALIST_ELEMENT) && ENABLE_DATALIST_ELEMENT
-
 input[type="color"][list] {

[tkent, 2013/05/20 21:32:11]

These three blocks should be added dynamically by the runtime flag like
datalist{display:none;}.

     -webkit-appearance: menulist;
     width: 88px;
@@ -887,8 +879,6 @@ input[type="color"][list]::-webkit-color-swatch {
     border-color: #000000;
 }
 
-#endif // defined(ENABLE_DATALIST_ELEMENT) && ENABLE_DATALIST_ELEMENT
-
 #endif // defined(ENABLE_INPUT_TYPE_COLOR) && ENABLE_INPUT_TYPE_COLOR
 
 #if defined(ENABLE_CALENDAR_PICKER) && ENABLE_CALENDAR_PICKER