Merge 106694

Source/WebCore/rendering/RenderDeprecatedFlexibleBox.cpp

Index: Source/WebCore/rendering/RenderDeprecatedFlexibleBox.cpp
===================================================================
--- Source/WebCore/rendering/RenderDeprecatedFlexibleBox.cpp	(revision 107302)
+++ Source/WebCore/rendering/RenderDeprecatedFlexibleBox.cpp	(working copy)
@@ -228,6 +228,13 @@
     LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
     LayoutStateMaintainer statePusher(view(), this, LayoutSize(x(), y()), hasTransform() || hasReflection() || style()->isFlippedBlocksWritingMode());
 
+    if (inRenderFlowThread()) {
+        // Regions changing widths can force us to relayout our children.
+        if (logicalWidthChangedInRegions())
+            relayoutChildren = true;
+    }
+    computeInitialRegionRangeForBlock();
+
     LayoutSize previousSize = size();
 
     computeLogicalWidth();
@@ -267,6 +274,8 @@
 
     bool needAnotherLayoutPass = layoutPositionedObjects(relayoutChildren || isRoot());
 
+    computeRegionRangeForBlock();
+
     if (!isFloatingOrPositioned() && height() == 0) {
         // We are a block with no border and padding and a computed height
         // of 0.  The CSS spec states that zero-height blocks collapse their margins