Account for perspective and preserve-3d in mapToVisualRectInAncestorSpace

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

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 67 matching lines @@
   m_multiColumnSetIntervalTree.clear();
 }
 
 void LayoutFlowThread::validateColumnSets() {
   m_columnSetsInvalidated = false;
   // Called to get the maximum logical width for the columnSet.
   updateLogicalWidth();
   generateColumnSetIntervalTree();
 }
 
-bool LayoutFlowThread::mapToVisualRectInAncestorSpace(
+bool LayoutFlowThread::mapToVisualRectInAncestorSpaceInternal(
     const LayoutBoxModelObject* ancestor,
-    LayoutRect& rect,
+    TransformState& transformState,
     VisualRectFlags visualRectFlags) const {
   // A flow thread should never be an invalidation container.
   DCHECK(ancestor != this);
+  transformState.flatten();
+  LayoutRect rect(transformState.lastPlanarQuad().boundingBox());
   rect = fragmentsBoundingBox(rect);
-  return LayoutBlockFlow::mapToVisualRectInAncestorSpace(ancestor, rect,
-                                                         visualRectFlags);
+  transformState.setQuad(FloatQuad(FloatRect(rect)));
+  return LayoutBlockFlow::mapToVisualRectInAncestorSpaceInternal(
+      ancestor, transformState, visualRectFlags);
 }
 
 void LayoutFlowThread::layout() {
   m_pageLogicalSizeChanged = m_columnSetsInvalidated && everHadLayout();
   LayoutBlockFlow::layout();
   m_pageLogicalSizeChanged = false;
 }
 
 void LayoutFlowThread::computeLogicalHeight(
     LayoutUnit,
@@ skipping 122 matching lines @@
 
 void LayoutFlowThread::MultiColumnSetSearchAdapter::collectIfNeeded(
     const MultiColumnSetInterval& interval) {
   if (m_result)
     return;
   if (interval.low() <= m_offset && interval.high() > m_offset)
     m_result = interval.data();
 }
 
 }  // namespace blink