Scanline decoding for gifs

dm/DMSrcSink.cpp

Index: dm/DMSrcSink.cpp
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index f9fa818a7826e305e5d443f2eec8705d5b194e32..3a315074998556cdfa02ec61573de9e97c89b5d2 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -87,10 +87,10 @@ SkScanlineDecoder* start_scanline_decoder(SkData* encoded, const SkImageInfo& in
     }
     // DM scanline test assume kTopDown scanline ordering.  Other orderings are
     // tested from within SkScaledCodec.
-    if (SkScanlineDecoder::kTopDown_SkScanlineOrder != scanlineDecoder->getScanlineOrder()) {
+    if (SkCodec::kSuccess != scanlineDecoder->start(info, NULL, colorPtr, colorCountPtr)) {
         return NULL;
     }
-    if (SkCodec::kSuccess != scanlineDecoder->start(info, NULL, colorPtr, colorCountPtr)) {
+    if (SkScanlineDecoder::kTopDown_SkScanlineOrder != scanlineDecoder->getScanlineOrder()) {
         return NULL;
     }
     return scanlineDecoder.detach();