From cc1485b44fc0faf3150b4e01e8690e01beab932c Mon Sep 17 00:00:00 2001
From: Jeff Gilbert <jgilbert@mozilla.com>
Date: Mon, 26 Aug 2013 11:26:27 -0400
Subject: [PATCH] Bug 783674 - WebGLContext::Render to use ReadScreen* and mark
 its surfaces as dirty. r=bjacob

---
 content/canvas/src/WebGLContext.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/content/canvas/src/WebGLContext.cpp b/content/canvas/src/WebGLContext.cpp
index 7e507aea2217..1aa957498383 100644
--- a/content/canvas/src/WebGLContext.cpp
+++ b/content/canvas/src/WebGLContext.cpp
@@ -615,6 +615,7 @@ WebGLContext::Render(gfxContext *ctx, gfxPattern::GraphicsFilter f, uint32_t aFl
     } else if (srcPremultAlpha && !dstPremultAlpha) {
         gfxUtils::UnpremultiplyImageSurface(surf);
     }
+    surf->MarkDirty();
 
     nsRefPtr<gfxPattern> pat = new gfxPattern(surf);
     pat->SetFilter(f);