From f6d868ede0db30e52bb3be332f7678379b9155df Mon Sep 17 00:00:00 2001
From: Kaushik Iska <iska.kaushik@gmail.com>
Date: Thu, 21 Nov 2019 19:40:06 -0800
Subject: [PATCH] [fuchsia] Ensure we do not initialize nan RoundedRectangles
 (flutter/engine#13971)

Also initializes physical shape layer vars to empty.
---
 engine/src/flutter/flow/scene_update_context.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/engine/src/flutter/flow/scene_update_context.cc b/engine/src/flutter/flow/scene_update_context.cc
index 14190b5b5d6..1c85bb658aa 100644
--- a/engine/src/flutter/flow/scene_update_context.cc
+++ b/engine/src/flutter/flow/scene_update_context.cc
@@ -71,6 +71,13 @@ void SceneUpdateContext::CreateFrame(scenic::EntityNode entity_node,
   if (rrect.isEmpty())
     return;
 
+  // isEmpty should account for this, but we are adding these experimental
+  // checks to validate if this is the root cause for b/144933519.
+  if (std::isnan(rrect.width()) || std::isnan(rrect.height())) {
+    FML_LOG(ERROR) << "Invalid RoundedRectangle";
+    return;
+  }
+
   // Add a part which represents the frame's geometry for clipping purposes
   // and possibly for its texture.
   // TODO(SCN-137): Need to be able to express the radii as vectors.