Flex grow wrongly calculated for value between 0 and 1

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

Index: third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp b/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
index 1eb668c54749a8922e573f36f951bdbcb2dc65f2..39536a4c68e23979924d3ce34a3959ea408cb752 100644
--- a/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutFlexibleBox.cpp
@@ -985,7 +985,10 @@ bool LayoutFlexibleBox::resolveFlexibleLengths(FlexSign flexSign, const OrderedF
             double extraSpace = 0;
             bool childShrunk = false;
             if (availableFreeSpace > 0 && totalFlexGrow > 0 && flexSign == PositiveFlexibility && std::isfinite(totalFlexGrow)) {
-                extraSpace = availableFreeSpace * child->style()->flexGrow() / totalFlexGrow;
+                if (totalFlexGrow < 1)
+                    extraSpace = availableFreeSpace * child->style()->flexGrow();
+                else
+                    extraSpace = availableFreeSpace * child->style()->flexGrow() / totalFlexGrow;
             } else if (availableFreeSpace < 0 && totalWeightedFlexShrink > 0 && flexSign == NegativeFlexibility && std::isfinite(totalWeightedFlexShrink) && child->style()->flexShrink()) {
                 extraSpace = availableFreeSpace * child->style()->flexShrink() * childInnerFlexBaseSize / totalWeightedFlexShrink;
                 childShrunk = true;