[CSSRegions] Constrain auto-height region computation in a different way

Source/core/rendering/RenderFlowThread.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 954 matching lines @@
     if (region->hasAutoLogicalHeight()) {
         // A forced break can appear only in an auto-height region that didn't have a forced break before.
         // This ASSERT is a good-enough heuristic to verify the above condition.
         ASSERT(region->maxPageLogicalHeight() == region->overrideLogicalContentHeight());
 
         mapToUse.set(breakChild, region);
 
         overrideLogicalContentHeightComputed = true;
 
         // Compute the region height pretending that the offsetBreakInCurrentRegion is the logicalHeight for the auto-height region.
-        LayoutUnit regionOverrideLogicalContentHeight = region->computeReplacedLogicalHeightRespectingMinMaxHeight(offsetBreakInCurrentRegion);
+        LayoutUnit regionOverrideLogicalContentHeight = region->constrainContentBoxLogicalHeightByMinMax(offsetBreakInCurrentRegion, -1);
 
         // The new height of this region needs to be smaller than the initial value, the max height. A forced break is the only way to change the initial
         // height of an auto-height region besides content ending.
         ASSERT(regionOverrideLogicalContentHeight <= region->maxPageLogicalHeight());
 
         region->setOverrideLogicalContentHeight(regionOverrideLogicalContentHeight);
 
         currentRegionOffsetInFlowThread += regionOverrideLogicalContentHeight;
     } else
         currentRegionOffsetInFlowThread += isHorizontalWritingMode() ? region->flowThreadPortionRect().height() : region->flowThreadPortionRect().width();
@@ skipping 81 matching lines @@
 {
     if (!m_renderFlowThread)
         return;
     RenderView* view = m_renderFlowThread->view();
     ASSERT(view->flowThreadController()->currentRenderFlowThread() == m_renderFlowThread);
     view->flowThreadController()->setCurrentRenderFlowThread(m_previousRenderFlowThread);
 }
 
 
 } // namespace WebCore