Scanline decoding for bmp

include/codec/SkScanlineDecoder.h

Index: include/codec/SkScanlineDecoder.h
diff --git a/include/codec/SkScanlineDecoder.h b/include/codec/SkScanlineDecoder.h
index c233663dbdb2d216349eed791744e20eec060f3f..0776d3c96430f702ea87297e3de297d28fa82a40 100644
--- a/include/codec/SkScanlineDecoder.h
+++ b/include/codec/SkScanlineDecoder.h
@@ -139,15 +139,19 @@ protected:
     SkScanlineDecoder(const SkImageInfo& srcInfo)
         : fSrcInfo(srcInfo)
         , fDstInfo()
+        , fOptions()
         , fCurrScanline(0) {}
 
     virtual bool onReallyHasAlpha() const { return false; }
 
     const SkImageInfo& dstInfo() const { return fDstInfo; }
 
+    const SkCodec::Options& options() const { return fOptions; }
+
 private:
     const SkImageInfo   fSrcInfo;
     SkImageInfo         fDstInfo;
+    SkCodec::Options    fOptions;
     int                 fCurrScanline;
 
     virtual SkCodec::Result onStart(const SkImageInfo& dstInfo,