CSS Motion Path: animate offset-anchor and offset-position

third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp

Index: third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp
diff --git a/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp b/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp
index a0fa48c58c9aca9fbe28b3329acbdc870024f0e9..10426ec3a358686cf0614e09a37dd8ce55c79a0f 100644
--- a/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp
+++ b/third_party/WebKit/Source/core/animation/LengthListPropertyFunctions.cpp
@@ -82,6 +82,8 @@ ValueRange LengthListPropertyFunctions::getValueRange(CSSPropertyID property)
     case CSSPropertyBackgroundPositionX:
     case CSSPropertyBackgroundPositionY:
     case CSSPropertyObjectPosition:
+    case CSSPropertyOffsetAnchor:
+    case CSSPropertyOffsetPosition:
     case CSSPropertyPerspectiveOrigin:
     case CSSPropertyTransformOrigin:
     case CSSPropertyWebkitMaskPositionX:
@@ -141,6 +143,10 @@ bool LengthListPropertyFunctions::getLengthList(CSSPropertyID property, const Co
 
     case CSSPropertyObjectPosition:
         return appendToVector(style.objectPosition(), result);
+    case CSSPropertyOffsetAnchor:
+        return appendToVector(style.offsetAnchor(), result);
+    case CSSPropertyOffsetPosition:
+        return appendToVector(style.offsetPosition(), result);
     case CSSPropertyPerspectiveOrigin:
         return appendToVector(style.perspectiveOrigin(), result);
     case CSSPropertyBorderBottomLeftRadius:
@@ -201,6 +207,12 @@ void LengthListPropertyFunctions::setLengthList(CSSPropertyID property, Computed
     case CSSPropertyObjectPosition:
         style.setObjectPosition(pointFromVector(lengthList));
         return;
+    case CSSPropertyOffsetAnchor:
+        style.setOffsetAnchor(pointFromVector(lengthList));
+        return;
+    case CSSPropertyOffsetPosition:
+        style.setOffsetPosition(pointFromVector(lengthList));
+        return;
     case CSSPropertyPerspectiveOrigin:
         style.setPerspectiveOrigin(pointFromVector(lengthList));
         return;