Implement Fill() for incomplete decodes to RGBA_F16

src/codec/SkSwizzler.h

Index: src/codec/SkSwizzler.h
diff --git a/src/codec/SkSwizzler.h b/src/codec/SkSwizzler.h
index 6172af5c433a69e14989a2a5ddde2d05d6650864..a535298a07952886dd3805a2a6571e4c41c1ec93 100644
--- a/src/codec/SkSwizzler.h
+++ b/src/codec/SkSwizzler.h
@@ -56,7 +56,7 @@ public:
     /**
      * Implement fill using a custom width.
      */
-    void fill(const SkImageInfo& info, void* dst, size_t rowBytes, uint32_t colorOrIndex,
+    void fill(const SkImageInfo& info, void* dst, size_t rowBytes, uint64_t colorOrIndex,
             SkCodec::ZeroInitialized zeroInit) override {
         const SkImageInfo fillInfo = info.makeWH(fAllocatedWidth, info.height());
         SkSampler::Fill(fillInfo, dst, rowBytes, colorOrIndex, zeroInit);