Adding rootlayerscrolls-specific test expectations.

third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp

Index: third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp b/third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp
index c5abafeced962ebdf8f4da75784b1ecd0c03ce32..6913f3cf5bcff793406222be09a71fb6fd696b78 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutTreeAsText.cpp
@@ -683,6 +683,14 @@ void LayoutTreeAsText::writeLayers(TextStream& ts,
       toLayoutPart(layer->layoutObject())->isThrottledFrameView())
     shouldPaint = false;
 
+  if (RuntimeEnabledFeatures::rootLayerScrollingEnabled() &&
+      !layer->isRootLayer()) {
+    ScrollableArea* scrollableArea = rootLayer->getScrollableArea();
+    FloatPoint adjustedScrollOffset =
+        scrollableArea->scrollPosition() + scrollableArea->scrollOrigin();

[skobes, 2016/10/13 18:06:27]

Adding the scroll origin doesn't make sense, the scroll position should already
include it.

+    layerBounds.moveBy(roundedIntPoint(adjustedScrollOffset));
+  }
+
   Vector<PaintLayerStackingNode*>* negList =
       layer->stackingNode()->negZOrderList();
   bool paintsBackgroundSeparately = negList && negList->size() > 0;