Account for perspective and preserve-3d in mapToVisualRectInAncestorSpace

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

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2013 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
@@ skipping 2045 matching lines @@
   if (!sectionBelow)
     return true;
   if (LayoutTableRow* firstRow = sectionBelow->firstRow()) {
     if (firstRow->paginationStrut() || firstRow->logicalHeight() > pageHeight)
       return false;
   }
 
   return true;
 }
 
-bool LayoutTableSection::mapToVisualRectInAncestorSpace(
+bool LayoutTableSection::mapToVisualRectInAncestorSpaceInternal(
     const LayoutBoxModelObject* ancestor,
-    LayoutRect& rect,
+    TransformState& transformState,
     VisualRectFlags flags) const {
   if (ancestor == this)
     return true;
   // Repeating table headers are painted once per fragmentation page/column.
   // This does not go through the regular fragmentation machinery, so we need
   // special code to expand the invalidation rect to contain all positions of
   // the header in all columns.
   // Note that this is in flow thread coordinates, not visual coordinates. The
   // enclosing LayoutFlowThread will convert to visual coordinates.
-  if (table()->header() == this && isRepeatingHeaderGroup())
+  if (table()->header() == this && isRepeatingHeaderGroup()) {
+    transformState.flatten();
+    FloatRect rect = transformState.lastPlanarQuad().boundingBox();
     rect.setHeight(table()->logicalHeight());
-  return LayoutTableBoxComponent::mapToVisualRectInAncestorSpace(ancestor, rect,
-                                                                 flags);
+    transformState.setQuad(FloatQuad(rect));
+  }
+  return LayoutTableBoxComponent::mapToVisualRectInAncestorSpaceInternal(
+      ancestor, transformState, flags);
 }
 
 }  // namespace blink