Handle the "key" field as opposed to keyIdentifier field.

third_party/WebKit/Source/core/html/forms/RangeInputType.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple 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 179 matching lines @@
 bool RangeInputType::hasTouchEventHandler() const
 {
     return true;
 }
 
 void RangeInputType::handleKeydownEvent(KeyboardEvent* event)
 {
     if (element().isDisabledOrReadOnly())
         return;
 
-    const String& key = event->keyIdentifier();
+    const String& key = event->key();
 
     const Decimal current = parseToNumberOrNaN(element().value());
     ASSERT(current.isFinite());
 
     StepRange stepRange(createStepRange(RejectAny));
 
 
     // FIXME: We can't use stepUp() for the step value "any". So, we increase
     // or decrease the value by 1/100 of the value range. Is it reasonable?
     const Decimal step = equalIgnoringCase(element().fastGetAttribute(stepAttr), "any") ? (stepRange.maximum() - stepRange.minimum()) / 100 : stepRange.step();
     const Decimal bigStep = std::max((stepRange.maximum() - stepRange.minimum()) / 10, step);
 
     TextDirection dir = LTR;
     bool isVertical = false;
     if (element().layoutObject()) {
         dir = computedTextDirection();
         ControlPart part = element().layoutObject()->style()->appearance();
         isVertical = part == SliderVerticalPart;
     }
 
     Decimal newValue;
-    if (key == "Up")
+    if (key == "ArrowUp")
         newValue = current + step;
-    else if (key == "Down")
+    else if (key == "ArrowDown")
         newValue = current - step;
-    else if (key == "Left")
+    else if (key == "ArrowLeft")
         newValue = (isVertical || dir == RTL) ? current + step : current - step;
-    else if (key == "Right")
+    else if (key == "ArrowRight")
         newValue = (isVertical || dir == RTL) ? current - step : current + step;
     else if (key == "PageUp")
         newValue = current + bigStep;
     else if (key == "PageDown")
         newValue = current - bigStep;
     else if (key == "Home")
         newValue = isVertical ? stepRange.maximum() : stepRange.minimum();
     else if (key == "End")
         newValue = isVertical ? stepRange.minimum() : stepRange.maximum();
     else
@@ skipping 177 matching lines @@
             right = middle;
     }
     const Decimal closestLeft = middle ? m_tickMarkValues[middle - 1] : Decimal::infinity(Decimal::Negative);
     const Decimal closestRight = middle != m_tickMarkValues.size() ? m_tickMarkValues[middle] : Decimal::infinity(Decimal::Positive);
     if (closestRight - value < value - closestLeft)
         return closestRight;
     return closestLeft;
 }
 
 } // namespace blink