Make skpinfo able to inspect SK_PICT_TYPEFACE_TAG blocks

src/utils/SkWhitelistTypefaces.cpp

Index: src/utils/SkWhitelistTypefaces.cpp
diff --git a/src/utils/SkWhitelistTypefaces.cpp b/src/utils/SkWhitelistTypefaces.cpp
index d3ffe98d16c052f95630ae0058512637008cdb9d..66d32188a023e69bfa9fc27fd8c47f933ad5eda6 100644
--- a/src/utils/SkWhitelistTypefaces.cpp
+++ b/src/utils/SkWhitelistTypefaces.cpp
@@ -184,7 +184,11 @@ void WhitelistSerializeTypeface(const SkTypeface* tf, SkWStream* wstream) {
 }
 
 SkTypeface* WhitelistDeserializeTypeface(SkStream* stream) {
-    SkFontDescriptor desc(stream);
+    SkFontDescriptor desc;
+    if (!SkFontDescriptor::Deserialize(stream, &desc)) {
+        return nullptr;
+    }
+
     SkFontData* data = desc.detachFontData();
     if (data) {
         SkTypeface* typeface = SkTypeface::CreateFromFontData(data);