Web Animations: Allow animations with delay to start on compositor

Source/core/css/resolver/AnimatedStyleBuilder.cpp

Index: Source/core/css/resolver/AnimatedStyleBuilder.cpp
diff --git a/Source/core/css/resolver/AnimatedStyleBuilder.cpp b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
index 275460a84f64a251faeee610ad055e017b55cafb..b46aaf223c384490f7ed8c660a2268bc6fb72ffc 100644
--- a/Source/core/css/resolver/AnimatedStyleBuilder.cpp
+++ b/Source/core/css/resolver/AnimatedStyleBuilder.cpp
@@ -345,8 +345,7 @@ void AnimatedStyleBuilder::applyProperty(CSSPropertyID property, StyleResolverSt
         style->setVisitedLinkColor(toAnimatableColor(value)->visitedLinkColor());
         return;
     case CSSPropertyFillOpacity:
-        // Avoiding a value of 1 forces a layer to be created.
-        style->setFillOpacity(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0, nextafterf(1, 0)));
+        style->setFillOpacity(clampTo<float>(toAnimatableDouble(value)->toDouble(), 0, 1));
         return;
     case CSSPropertyFill:
         {
@@ -579,13 +578,9 @@ void AnimatedStyleBuilder::applyProperty(CSSPropertyID property, StyleResolverSt
         style->setTextStrokeColor(toAnimatableColor(value)->color());
         style->setVisitedLinkTextStrokeColor(toAnimatableColor(value)->visitedLinkColor());
         return;
-    case CSSPropertyWebkitTransform: {
-        const TransformOperations& operations = toAnimatableTransform(value)->transformOperations();
-        // FIXME: Using identity matrix here when the transform list is empty
-        // forces a layer to be created in the presence of a transform animation.
-        style->setTransform(operations.size() ? operations : TransformOperations(true));
+    case CSSPropertyWebkitTransform:
+        style->setTransform(toAnimatableTransform(value)->transformOperations());
         return;
-    }
     case CSSPropertyWebkitTransformOriginX:
         style->setTransformOriginX(animatableValueToLength(value, state));
         return;