[WIP] CSS Motion Path: offset-anchor and offset-position

third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp

Index: third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
diff --git a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
index f5fd517ea29aae3e3030fdd65613753660cce5f8..fd01f29e4b7cdb24599d2493079efda145744774 100644
--- a/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
+++ b/third_party/WebKit/Source/core/css/resolver/StyleBuilderConverter.cpp
@@ -744,23 +744,23 @@ float StyleBuilderConverter::convertNumberOrPercentage(StyleResolverState& state
     return primitiveValue.getFloatValue() / 100.0f;
 }
 
-StyleMotionRotation StyleBuilderConverter::convertMotionRotation(StyleResolverState&, const CSSValue& value)
+StyleOffsetRotation StyleBuilderConverter::convertOffsetRotation(StyleResolverState&, const CSSValue& value)
 {
-    return convertMotionRotation(value);
+    return convertOffsetRotation(value);
 }
 
-StyleMotionRotation StyleBuilderConverter::convertMotionRotation(const CSSValue& value)
+StyleOffsetRotation StyleBuilderConverter::convertOffsetRotation(const CSSValue& value)
 {
-    StyleMotionRotation result(0, MotionRotationFixed);
+    StyleOffsetRotation result(0, OffsetRotationFixed);
 
     const CSSValueList& list = toCSSValueList(value);
     ASSERT(list.length() == 1 || list.length() == 2);
     for (const auto& item : list) {
         const CSSPrimitiveValue& primitiveValue = toCSSPrimitiveValue(*item);
         if (primitiveValue.getValueID() == CSSValueAuto) {
-            result.type = MotionRotationAuto;
+            result.type = OffsetRotationAuto;
         } else if (primitiveValue.getValueID() == CSSValueReverse) {
-            result.type = MotionRotationAuto;
+            result.type = OffsetRotationAuto;
             result.angle += 180;
         } else {
             result.angle += primitiveValue.computeDegrees();
@@ -809,6 +809,14 @@ LengthPoint StyleBuilderConverter::convertPosition(StyleResolverState& state, co
     );
 }
 
+LengthPoint StyleBuilderConverter::convertPositionOrAuto(StyleResolverState& state, const CSSValue& value)
+{
+    if (value.isValuePair())
+        return convertPosition(state, value);
+    DCHECK(toCSSPrimitiveValue(value).getValueID() == CSSValueAuto);
+    return LengthPoint(Length(Auto), Length(Auto));
+}
+
 static float convertPerspectiveLength(StyleResolverState& state, const CSSPrimitiveValue& primitiveValue)
 {
     return std::max(primitiveValue.computeLength<float>(state.cssToLengthConversionData()), 0.0f);