Revert "Incorporate ComputedStyle::hasTransform when diffing transform styles."

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

Index: third_party/WebKit/Source/core/paint/PaintLayerTest.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintLayerTest.cpp b/third_party/WebKit/Source/core/paint/PaintLayerTest.cpp
index 09d54551d638bcea1668241d2af8e2c7a494eb8c..dd84f953839c970cc8e999537fac743accb38708 100644
--- a/third_party/WebKit/Source/core/paint/PaintLayerTest.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintLayerTest.cpp
@@ -809,21 +809,4 @@ TEST_P(PaintLayerTest, ColumnSpanLayerUnderExtraLayerScrolled) {
   EXPECT_EQ(LayoutPoint(-150, 50), spanner->visualOffsetFromAncestor(columns));
 }
 
-TEST_P(PaintLayerTest, PaintLayerTransformUpdatedOnStyleTransformAnimation) {
-  setBodyInnerHTML("<div id='target' style='will-change: transform'></div>");
-
-  LayoutObject* targetObject =
-      document().getElementById("target")->layoutObject();
-  PaintLayer* targetPaintLayer = toLayoutBoxModelObject(targetObject)->layer();
-  EXPECT_EQ(nullptr, targetPaintLayer->transform());
-
-  RefPtr<ComputedStyle> oldStyle =
-      ComputedStyle::clone(targetObject->styleRef());
-  ComputedStyle* newStyle = targetObject->mutableStyle();
-  newStyle->setHasCurrentTransformAnimation();
-  targetPaintLayer->updateTransform(oldStyle.get(), *newStyle);
-
-  EXPECT_NE(nullptr, targetPaintLayer->transform());
-}
-
 }  // namespace blink