From 535eb308553d9993c7714f184001a8f57f18b858 Mon Sep 17 00:00:00 2001
From: Adam Barth <abarth@chromium.org>
Date: Tue, 8 Dec 2015 11:32:30 -0800
Subject: [PATCH] Don't crash when RasterizerMojo::Draw happens without a
 context

If we don't have a context, we can't draw, so bail out early.
---
 sky/shell/gpu/mojo/rasterizer_mojo.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sky/shell/gpu/mojo/rasterizer_mojo.cc b/sky/shell/gpu/mojo/rasterizer_mojo.cc
index 5e346620a7..66a38d044e 100644
--- a/sky/shell/gpu/mojo/rasterizer_mojo.cc
+++ b/sky/shell/gpu/mojo/rasterizer_mojo.cc
@@ -46,6 +46,10 @@ void RasterizerMojo::ConnectToRasterizer (
 void RasterizerMojo::Draw(uint64_t layer_tree_ptr,
                           const DrawCallback& callback) {
   TRACE_EVENT0("flutter", "RasterizerMojo::Draw");
+  if (!context_) {
+    callback.Run();
+    return;
+  }
 
   scoped_ptr<compositor::LayerTree> layer_tree(
       reinterpret_cast<compositor::LayerTree*>(layer_tree_ptr));
-- 
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