Remove the compile time flag for DATALIST Element.

Source/core/rendering/RenderThemeChromiumDefault.cpp

Index: Source/core/rendering/RenderThemeChromiumDefault.cpp
diff --git a/Source/core/rendering/RenderThemeChromiumDefault.cpp b/Source/core/rendering/RenderThemeChromiumDefault.cpp
index 11b6f36b161f26fa0344643910fad49be99f3868..5fd248dc085d647ba62942743e23316938feb48f 100644
--- a/Source/core/rendering/RenderThemeChromiumDefault.cpp
+++ b/Source/core/rendering/RenderThemeChromiumDefault.cpp
@@ -155,7 +155,6 @@ Color RenderThemeChromiumDefault::platformInactiveSelectionForegroundColor() con
     return m_inactiveSelectionForegroundColor;
 }
 
-#if ENABLE(DATALIST_ELEMENT)
 IntSize RenderThemeChromiumDefault::sliderTickSize() const
 {
     return IntSize(1, 6);
@@ -165,7 +164,6 @@ int RenderThemeChromiumDefault::sliderTickOffsetFromTrackCenter() const
 {
     return -16;
 }
-#endif
 
 void RenderThemeChromiumDefault::adjustSliderThumbSize(RenderStyle* style, Element* element) const
 {
@@ -321,9 +319,7 @@ bool RenderThemeChromiumDefault::paintSliderTrack(RenderObject* o, const PaintIn
 
     WebKit::Platform::current()->themeEngine()->paint(canvas, WebKit::WebThemeEngine::PartSliderTrack, getWebThemeState(this, o), WebKit::WebRect(rect), &extraParams);
 
-#if ENABLE(DATALIST_ELEMENT)
     paintSliderTicks(o, i, rect);
-#endif
 
     return false;
 }