[TablesNG] Fix baseline caching

Makes two tests pass
external/wpt/css/css-tables/tentative/baseline-td.html
fast/table/vertical-align-baseline-readjust.html

Change-Id: Idacd72be865474ca01fa3807e8e20a63f485d52a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2613551
Commit-Queue: Aleks Totic <atotic@chromium.org>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Auto-Submit: Aleks Totic <atotic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840851}

third_party/blink/renderer/core/layout/ng/ng_constraint_space.h

@@ -641,7 +641,11 @@ class CORE_EXPORT NGConstraintSpace final {
     return bitfields_.AreInlineSizeConstraintsEqual(other.bitfields_);
   }
   bool AreBlockSizeConstraintsEqual(const NGConstraintSpace& other) const {
-    return bitfields_.AreBlockSizeConstraintsEqual(other.bitfields_);
+    if (!bitfields_.AreBlockSizeConstraintsEqual(other.bitfields_))
+      return false;
+    if (!HasRareData() && !other.HasRareData())
+      return true;
+    return TableCellAlignmentBaseline() == other.TableCellAlignmentBaseline();
   }
 
   bool AreSizesEqual(const NGConstraintSpace& other) const {