Update layer size from LayoutBox::UpdateAfterLayout

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

Index: third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
index e8aab8d30d64b56c8f869bc292201f203725f280..77a7950d0a7dd47c71b11c7fe72eee01393780bd 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp
@@ -332,6 +332,7 @@ void LayoutBoxModelObject::StyleDidChange(StyleDifference diff,
       CreateLayerAfterStyleChange();
       if (Parent() && !NeedsLayout()) {
         // FIXME: We should call a specialized versions of this function.

[bokan, 2017/05/12 15:58:18]

The FIXME should be moved down since it refers to
UpdateLayerPositionsAfterLayout (do you know what it means? what specialised
versions?)

[szager1, 2017/05/12 19:12:12]

The comment was added here:

https://codereview.chromium.org/443773002/

I'm not sure whether it refers to the fact that in this case, it's not being
called after layout.  Or maybe it's because UpdateLayerPositionsAfterLayout is
recursive, but there's no need to recurse here (because a brand-new layer won't
have any child layers).  I'm not really sure.

[skobes, 2017/05/16 22:22:22]

I'm guessing the former (not after layout).

+        Layer()->UpdateSize();
         Layer()->UpdateLayerPositionsAfterLayout();
       }
     }