Add Length::isPercent and use it in tables.

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 334 matching lines @@
     ASSERT(!needsLayout() || (node() && node()->isElementNode() && toElement(node())->shadowPseudoId() == "-webkit-input-placeholder"));
 
     if (logicalHeight() > LayoutUnit()
         || borderAndPaddingLogicalHeight()
         || style()->logicalMinHeight().isPositive()
         || style()->marginBeforeCollapse() == MarginCollapseSeparate || style()->marginAfterCollapse() == MarginCollapseSeparate)
         return false;
 
     Length logicalHeightLength = style()->logicalHeight();
     bool hasAutoHeight = logicalHeightLength.isAuto();
-    if (logicalHeightLength.hasPercent() && !document().inQuirksMode()) {
+    if (logicalHeightLength.isPercentOrCalc() && !document().inQuirksMode()) {
         hasAutoHeight = true;
         for (LayoutBlock* cb = containingBlock(); !cb->isLayoutView(); cb = cb->containingBlock()) {
             if (cb->style()->logicalHeight().isFixed() || cb->isTableCell())
                 hasAutoHeight = false;
         }
     }
 
     // If the height is 0 or auto, then whether or not we are a self-collapsing block depends
     // on whether we have content that is all self-collapsing or not.
     // TODO(alancutter): Make this work correctly for calc lengths.
-    if (hasAutoHeight || ((logicalHeightLength.isFixed() || logicalHeightLength.hasPercent()) && logicalHeightLength.isZero())) {
+    if (hasAutoHeight || ((logicalHeightLength.isFixed() || logicalHeightLength.isPercentOrCalc()) && logicalHeightLength.isZero())) {
         // If the block has inline children, see if we generated any line boxes.  If we have any
         // line boxes, then we can't be self-collapsing, since we have content.
         if (childrenInline())
             return !firstLineBox();
 
         // Whether or not we collapse is dependent on whether all our normal flow children
         // are also self-collapsing.
         for (LayoutBox* child = firstChildBox(); child; child = child->nextSiblingBox()) {
             if (child->isFloatingOrOutOfFlowPositioned())
                 continue;
@@ skipping 3373 matching lines @@
 
     return LayoutBlock::invalidatePaintIfNeeded(paintInvalidationState);
 }
 
 void LayoutBlockFlow::invalidateDisplayItemClients(PaintInvalidationReason invalidationReason) const
 {
     BlockFlowPaintInvalidator(*this).invalidateDisplayItemClients(invalidationReason);
 }
 
 } // namespace blink