Remove the compile time flag for DATALIST Element.

Source/core/html/shadow/SliderThumbElement.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 122 matching lines @@
 
 private:
     virtual void layout() OVERRIDE;
 };
 
 void RenderSliderContainer::computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues& computedValues) const
 {
     HTMLInputElement* input = node()->shadowHost()->toInputElement();
     bool isVertical = hasVerticalAppearance(input);
 
-#if ENABLE(DATALIST_ELEMENT)
     if (input->renderer()->isSlider() && !isVertical && input->list()) {
         int offsetFromCenter = theme()->sliderTickOffsetFromTrackCenter();
         LayoutUnit trackHeight = 0;
         if (offsetFromCenter < 0)
             trackHeight = -2 * offsetFromCenter;
         else {
             int tickLength = theme()->sliderTickSize().height();
             trackHeight = 2 * (offsetFromCenter + tickLength);
         }
         float zoomFactor = style()->effectiveZoom();
         if (zoomFactor != 1.0)
             trackHeight *= zoomFactor;
 
         RenderBox::computeLogicalHeight(trackHeight, logicalTop, computedValues);
         return;
     }
-#endif
     if (isVertical)
         logicalHeight = RenderSlider::defaultTrackLength;
     RenderBox::computeLogicalHeight(logicalHeight, logicalTop, computedValues);
 }
 
 void RenderSliderContainer::layout()
 {
     HTMLInputElement* input = node()->shadowHost()->toInputElement();
     bool isVertical = hasVerticalAppearance(input);
     style()->setFlexDirection(isVertical ? FlowColumn : FlowRow);
@@ skipping 116 matching lines @@
         position = offset.x() - renderBox()->width() / 2 - trackBoundingBox.x() + inputBoundingBox.x();
         position -= isLeftToRightDirection ? renderBox()->marginLeft() : renderBox()->marginRight();
         currentPosition = absoluteThumbOrigin.x() - absoluteSliderContentOrigin.x();
     }
     position = max<LayoutUnit>(0, min(position, trackSize));
     const Decimal ratio = Decimal::fromDouble(static_cast<double>(position) / trackSize);
     const Decimal fraction = isVertical || !isLeftToRightDirection ? Decimal(1) - ratio : ratio;
     StepRange stepRange(input->createStepRange(RejectAny));
     Decimal value = stepRange.clampValue(stepRange.valueFromProportion(fraction));
 
-#if ENABLE(DATALIST_ELEMENT)
     const LayoutUnit snappingThreshold = renderer()->theme()->sliderTickSnappingThreshold();
     if (snappingThreshold > 0) {
         Decimal closest = input->findClosestTickMarkValue(value);
         if (closest.isFinite()) {
             double closestFraction = stepRange.proportionFromValue(closest).toDouble();
             double closestRatio = isVertical || !isLeftToRightDirection ? 1.0 - closestFraction : closestFraction;
             LayoutUnit closestPosition = trackSize * closestRatio;
             if ((closestPosition - position).abs() <= snappingThreshold)
                 value = closest;
         }
     }
-#endif
 
     String valueString = serializeForNumberType(value);
     if (valueString == input->value())
         return;
 
     // FIXME: This is no longer being set from renderer. Consider updating the method name.
     input->setValueFromRenderer(valueString);
     renderer()->setNeedsLayout(true);
     input->dispatchFormControlChangeEvent();
 }
@@ skipping 156 matching lines @@
     case MediaVolumeSliderThumbPart:
     case MediaFullScreenVolumeSliderPart:
     case MediaFullScreenVolumeSliderThumbPart:
         return mediaSliderContainer;
     default:
         return sliderContainer;
     }
 }
 
 }