From ed145364723c7c3bb7dd9eb3b7ecf353bfbb5493 Mon Sep 17 00:00:00 2001
From: Cameron Kaiser <classilla@floodgap.com>
Date: Mon, 11 Feb 2019 16:59:59 -0800
Subject: [PATCH] #501: make animated WebP failures fatal for now

---
 image/decoders/nsWEBPDecoder.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/image/decoders/nsWEBPDecoder.cpp b/image/decoders/nsWEBPDecoder.cpp
index 4df13ad1f..53ff4c530 100644
--- a/image/decoders/nsWEBPDecoder.cpp
+++ b/image/decoders/nsWEBPDecoder.cpp
@@ -124,7 +124,10 @@ nsWEBPDecoder::WriteInternal(const char* aBuffer, uint32_t aCount)
 
     // Valid demuxer available.
     if (flags & ANIMATION_FLAG) {
-       NS_WARNING("animated WebP not yet supported"); // XXX
+// XXX
+fprintf(stderr, "Warning: TenFourFox doesn't support animated WebP.\n");
+PostDecoderError(NS_ERROR_FAILURE);
+return;
     }
     if (flags & ALPHA_FLAG) {
       PostHasTransparency();