Do not treat '0' as 'none' for font-size-adjust

Source/core/animation/StringKeyframe.cpp

Index: Source/core/animation/StringKeyframe.cpp
diff --git a/Source/core/animation/StringKeyframe.cpp b/Source/core/animation/StringKeyframe.cpp
index d6cee7153764a3142e72e852c806202ea154a410..0c07ab2719d43f8b36a1ad16d39c4fe10a5d270f 100644
--- a/Source/core/animation/StringKeyframe.cpp
+++ b/Source/core/animation/StringKeyframe.cpp
@@ -216,10 +216,6 @@ PassRefPtrWillBeRawPtr<Interpolation> StringKeyframe::PropertySpecificKeyframe::
             fallBackToLegacy = true;
 
         break;
-    case CSSPropertyFontSizeAdjust:
-        // FIXME: Requires special handing for 0.
-        fallBackToLegacy = true;
-        break;
     case CSSPropertyOrphans:
     case CSSPropertyWidows:
     case CSSPropertyZIndex:
@@ -227,12 +223,17 @@ PassRefPtrWillBeRawPtr<Interpolation> StringKeyframe::PropertySpecificKeyframe::
     case CSSPropertyShapeImageThreshold:
     case CSSPropertyFillOpacity:
     case CSSPropertyFloodOpacity:
+    case CSSPropertyFontSizeAdjust:
     case CSSPropertyOpacity:
     case CSSPropertyStopOpacity:
     case CSSPropertyStrokeOpacity:
     case CSSPropertyStrokeMiterlimit:
         if (DoubleStyleInterpolation::canCreateFrom(*fromCSSValue) && DoubleStyleInterpolation::canCreateFrom(*toCSSValue))
             return DoubleStyleInterpolation::create(*fromCSSValue, *toCSSValue, property, toCSSPrimitiveValue(fromCSSValue)->primitiveType(), setRange(property));
+
+        // FIXME: Handle keywords e.g. 'none'.

[dstockwell, 2015/03/20 03:24:29]

This shouldn't be necessary now. Does anything break if you remove it?

[changseok, 2015/03/20 08:29:39]

Nothing. Removed.

+        if (property == CSSPropertyFontSizeAdjust)
+            fallBackToLegacy = true;
         break;
 
     case CSSPropertyMotionRotation: {