[SPv2] Create effect nodes for CSS filter

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp

Index: third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
index edc5e78f83ce4ae8f84a831a552b661214f78636..bb7034eaee9b8260524bff982f460ce5b655ee98 100644
--- a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilderTest.cpp
@@ -2876,4 +2876,15 @@ TEST_P(PaintPropertyTreeBuilderTest,
   EXPECT_TRUE(
       getLayoutObjectByElementId("absolute")->container()->isLayoutBlock());
 }
+
+TEST_P(PaintPropertyTreeBuilderTest, SimpleFilter) {
+  setBodyInnerHTML(
+      "<div id='filter' style='filter:opacity(0.5); height:1000px;'>"
+      "</div>");
+  const ObjectPaintProperties* filterProperties = getLayoutObjectByElementId("filter")->objectPaintProperties();
+  EXPECT_TRUE(filterProperties->effect()->parent()->isRoot());
+  EXPECT_EQ(frameScrollTranslation(), filterProperties->effect()->localTransformSpace());
+  EXPECT_EQ(frameContentClip(), filterProperties->effect()->outputClip());
+}
+
 }  // namespace blink