Blink doesn't honor percent heights on children of "align-self:stretch" flex items in a fixed-height

Source/core/rendering/RenderFlexibleBox.cpp

Index: Source/core/rendering/RenderFlexibleBox.cpp
diff --git a/Source/core/rendering/RenderFlexibleBox.cpp b/Source/core/rendering/RenderFlexibleBox.cpp
index 7cab4eda8558c0e972e2a7fed1a86c3219f8fbe8..c638bcf790cd567bd451af359800ea3a30bcad7b 100644
--- a/Source/core/rendering/RenderFlexibleBox.cpp
+++ b/Source/core/rendering/RenderFlexibleBox.cpp
@@ -1372,6 +1372,7 @@ void RenderFlexibleBox::applyStretchAlignmentToChild(RenderBox* child, LayoutUni
             // FIXME: Can avoid laying out here in some cases. See https://webkit.org/b/87905.
             if (desiredLogicalHeight != child->logicalHeight()) {
                 child->setOverrideLogicalContentHeight(desiredLogicalHeight - child->borderAndPaddingLogicalHeight());
+                child->setOverrideContainingBlockContentLogicalHeight(desiredLogicalHeight - child->borderAndPaddingLogicalHeight());
                 child->setLogicalHeight(0);
                 child->forceChildLayout();
             }