Remove shape-inside support

Source/core/rendering/RenderFlexibleBox.cpp

 /*
  * Copyright (C) 2011 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 226 matching lines @@
 
     if (updateLogicalWidthAndColumnWidth())
         relayoutChildren = true;
 
     LayoutUnit previousHeight = logicalHeight();
     setLogicalHeight(borderAndPaddingLogicalHeight() + scrollbarLogicalHeight());
 
     {
         LayoutStateMaintainer statePusher(*this, locationOffset());
 
-        RenderFlowThread* flowThread = flowThreadContainingBlock();
-        if (updateRegionsAndShapesLogicalSize(flowThread))
-            relayoutChildren = true;
-
         m_numberOfInFlowChildrenOnFirstLine = -1;
 
         RenderBlock::startDelayUpdateScrollInfo();
 
         prepareOrderIteratorAndMargins();
 
         ChildFrameRects oldChildRects;
         appendChildFrameRects(oldChildRects);
 
         layoutFlexItems(relayoutChildren);
 
         RenderBlock::finishDelayUpdateScrollInfo();
 
         if (logicalHeight() != previousHeight)
             relayoutChildren = true;
 
         layoutPositionedObjects(relayoutChildren || isRoot());
 
-        computeRegionRangeForBlock(flowThread);
+        computeRegionRangeForBlock(flowThreadContainingBlock());
 
         repaintChildrenDuringLayoutIfMoved(oldChildRects);
         // FIXME: css3/flexbox/repaint-rtl-column.html seems to repaint more overflow than it needs to.
         computeOverflow(clientLogicalBottomAfterRepositioning());
     }
 
     updateLayerTransform();
 
     // Update our scroll information if we're overflow:auto/scroll/hidden now that we know if
     // we overflow or not.
@@ skipping 1123 matching lines @@
             ASSERT(child);
             LayoutUnit lineCrossAxisExtent = lineContexts[lineNumber].crossAxisExtent;
             LayoutUnit originalOffset = lineContexts[lineNumber].crossAxisOffset - crossAxisStartEdge;
             LayoutUnit newOffset = contentExtent - originalOffset - lineCrossAxisExtent;
             adjustAlignmentForChild(child, newOffset - originalOffset);
         }
     }
 }
 
 }