Remove paintOffsetTranslation for fixed-position elements.

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

Index: third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp
diff --git a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp
index 6baebf02bfb5a7794626ffa4a5af5af5d5137593..93fff8b72d83986101740fbb707b925ddbabf3d4 100644
--- a/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp
+++ b/third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.cpp
@@ -219,10 +219,6 @@ void PaintPropertyTreeBuilder::updatePaintOffsetTranslation(
     usesPaintOffsetTranslation = true;
   } else if (object.isBoxModelObject() &&
              context.current.paintOffset != LayoutPoint()) {
-    // TODO(trchen): Eliminate PaintLayer dependency.
-    // TODO(chrishtr): When changing the condition here, make sure to update
-    // the condition in LayoutBoxModelObject::styleDidChange() above
-    // setNeedsPaintPropertyUpdate().
     PaintLayer* layer = toLayoutBoxModelObject(object).layer();
     if (layer &&
         layer->paintsWithTransform(GlobalPaintFlattenCompositingLayers))