Set width/height also to Undefined when we change the measure mode to Undefined

Summary:
Make sure width/height is always passed as Undefined when measure mode is changed to Undefined.

Changelog: [Internal][Yoga] Set width and height as Undefined when we change measure mode to Undefined

Reviewed By: alickbass

Differential Revision: D20029838

fbshipit-source-id: b9931f6ddb13ffd1565889535ade5bbffbe0c304

yoga/Yoga.cpp

@@ -1663,8 +1663,8 @@ static void YGNodeAbsoluteLayoutChild(
 
 static void YGNodeWithMeasureFuncSetMeasuredDimensions(
     const YGNodeRef node,
-    const float availableWidth,
-    const float availableHeight,
+    float availableWidth,
+    float availableHeight,
     const YGMeasureMode widthMeasureMode,
     const YGMeasureMode heightMeasureMode,
     const float ownerWidth,
@@ -1677,6 +1677,13 @@ static void YGNodeWithMeasureFuncSetMeasuredDimensions(
       node->hasMeasureFunc(),
       "Expected node to have custom measure function");
 
+  if (widthMeasureMode == YGMeasureModeUndefined) {
+    availableWidth = YGUndefined;
+  }
+  if (heightMeasureMode == YGMeasureModeUndefined) {
+    availableHeight = YGUndefined;
+  }
+
   const float paddingAndBorderAxisRow =
       YGNodePaddingAndBorderForAxis(node, YGFlexDirectionRow, ownerWidth);
   const float paddingAndBorderAxisColumn =