Remove the compile time flag for DATALIST Element.

Source/core/rendering/RenderTheme.h

 /*
  * This file is part of the theme implementation for form controls in WebCore.
  *
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 64 matching lines @@
     // whether the CSS border/background should also be painted.
     bool paint(RenderObject*, const PaintInfo&, const IntRect&);
     bool paintBorderOnly(RenderObject*, const PaintInfo&, const IntRect&);
     bool paintDecorations(RenderObject*, const PaintInfo&, const IntRect&);
 
     // The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
     // RenderThemeMac.cpp for Mac OS X.
 
     // These methods return the theme's extra style sheets rules, to let each platform
     // adjust the default CSS rules in html.css, quirks.css or mediaControls.css.
-    virtual String extraDefaultStyleSheet() { return String(); }
+    virtual String extraDefaultStyleSheet();
     virtual String extraQuirksStyleSheet() { return String(); }
     virtual String extraMediaControlsStyleSheet() { return String(); }
     virtual String extraFullScreenStyleSheet() { return String(); }
 
     // A method to obtain the baseline position for a "leaf" control.  This will only be used if a baseline
     // position cannot be determined by examining child content. Checkboxes and radio buttons are examples of
     // controls that need to do this.
     virtual int baselinePosition(const RenderObject*) const;
 
     // A method for asking if a control is a container or not.  Leaf controls have to have some special behavior (like
@@ skipping 93 matching lines @@
     virtual bool usesMediaControlVolumeSlider() const { return true; }
     virtual bool usesVerticalVolumeSlider() const { return true; }
     virtual double mediaControlsFadeInDuration() { return 0.1; }
     virtual double mediaControlsFadeOutDuration() { return 0.3; }
     virtual String formatMediaControlsTime(float time) const;
     virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
 
     virtual IntSize meterSizeForBounds(const RenderMeter*, const IntRect&) const;
     virtual bool supportsMeter(ControlPart) const;
 
-#if ENABLE(DATALIST_ELEMENT)
     // Returns the threshold distance for snapping to a slider tick mark.
     virtual LayoutUnit sliderTickSnappingThreshold() const;
     // Returns size of one slider tick mark for a horizontal track.
     // For vertical tracks we rotate it and use it. i.e. Width is always length along the track.
     virtual IntSize sliderTickSize() const = 0;
     // Returns the distance of slider tick origin from the slider track center.
     virtual int sliderTickOffsetFromTrackCenter() const = 0;
     void paintSliderTicks(RenderObject*, const PaintInfo&, const IntRect&);
-#endif
 
     virtual bool shouldShowPlaceholderWhenFocused() const { return false; }
     virtual bool shouldHaveSpinButton(HTMLInputElement*) const;
 
     // Functions for <select> elements.
     virtual bool delegatesMenuListRendering() const { return false; }
     virtual bool popsMenuByArrowKeys() const { return false; }
     virtual bool popsMenuBySpaceOrReturn() const { return false; }
 
     virtual String fileListDefaultLabel(bool multipleFilesAllowed) const;
@@ skipping 126 matching lines @@
     static const RGBA32 defaultTapHighlightColor = 0x66000000;
 
 #if USE(NEW_THEME)
     Theme* m_theme; // The platform-specific theme.
 #endif
 };
 
 } // namespace WebCore
 
 #endif // RenderTheme_h