From a924283c1e68bfbfaa04e11031ec3f92b69b3202 Mon Sep 17 00:00:00 2001
From: Adam Barth <github@adambarth.com>
Date: Thu, 29 Sep 2016 21:59:59 -0700
Subject: [PATCH] lerpDouble return value should be "double"
 (flutter/engine#3068)

Fixes https://github.com/flutter/flutter/issues/5783
---
 engine/src/flutter/lib/ui/lerp.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/engine/src/flutter/lib/ui/lerp.dart b/engine/src/flutter/lib/ui/lerp.dart
index c1b309da3ec..d464dca2736 100644
--- a/engine/src/flutter/lib/ui/lerp.dart
+++ b/engine/src/flutter/lib/ui/lerp.dart
@@ -5,7 +5,7 @@
 part of dart_ui;
 
 /// Linearly interpolate between two numbers.
-num lerpDouble(num a, num b, double t) {
+double lerpDouble(num a, num b, double t) {
   if (a == null && b == null)
     return null;
   if (a == null)