[LayoutNG] NGPhysicalFragment::CheckType() for columns.
Follow-up to CL:1669916
Change-Id: Ie98e1cbf0ed3cb90b41bdc682367474992bd1970
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1676124
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672124}
diff --git a/third_party/blink/renderer/core/layout/ng/ng_physical_fragment.cc b/third_party/blink/renderer/core/layout/ng/ng_physical_fragment.cc
index 374f33a0..a84abe3f 100644
--- a/third_party/blink/renderer/core/layout/ng/ng_physical_fragment.cc
+++ b/third_party/blink/renderer/core/layout/ng/ng_physical_fragment.cc
@@ -367,7 +367,15 @@
DCHECK(layout_object_.IsBox());
}
if (IsColumnBox()) {
- // TODO(kojii): Column box can fail following checks, needs review.
+ // Column fragments are associated with the same layout object as their
+ // multicol container. The fragments themselves are regular in-flow
+ // block container fragments for most purposes.
+ DCHECK(layout_object_.IsLayoutBlockFlow());
+ DCHECK(IsBox());
+ DCHECK(!IsFloating());
+ DCHECK(!IsOutOfFlowPositioned());
+ DCHECK(!IsAtomicInline());
+ DCHECK(!IsBlockFormattingContextRoot());
break;
}
if (layout_object_.IsLayoutNGListMarker()) {
