[table] Stretching tables when needed due to self-alignment properties

third_party/WebKit/Source/core/layout/LayoutBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 1365 matching lines @@
 
   void insertedIntoTree() override;
   void willBeRemovedFromTree() override;
 
   void styleWillChange(StyleDifference, const ComputedStyle& newStyle) override;
   void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) override;
   void updateFromStyle() override;
 
   virtual ItemPosition selfAlignmentNormalBehavior(
       const LayoutBox* child = nullptr) const {
-    DCHECK(!child);
-    return ItemPositionStretch;
+    return ItemPositionStart;
   }
 
   // Returns false if it could not cheaply compute the extent (e.g. fixed
   // background), in which case the returned rect may be incorrect.
   // FIXME: make this a const method once the LayoutBox reference in BoxPainter
   // is const.
   bool getBackgroundPaintedExtent(LayoutRect&) const;
   virtual bool foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect,
                                                  unsigned maxDepthToTest) const;
   bool computeBackgroundIsKnownToBeObscured() const override;
@@ skipping 300 matching lines @@
          breakValue == EBreakBetween::kLeft ||
          breakValue == EBreakBetween::kPage ||
          breakValue == EBreakBetween::kRecto ||
          breakValue == EBreakBetween::kRight ||
          breakValue == EBreakBetween::kVerso;
 }
 
 }  // namespace blink
 
 #endif  // LayoutBox_h