Prototype code that turns any/every flattenable into JSON

src/core/SkPictureData.cpp

Index: src/core/SkPictureData.cpp
diff --git a/src/core/SkPictureData.cpp b/src/core/SkPictureData.cpp
index 43e0793cfb4996a7230fb84ef1d5ec866eeecd5b..ed32c6c029f498e45aa1d06859043d70b2e7c7e7 100644
--- a/src/core/SkPictureData.cpp
+++ b/src/core/SkPictureData.cpp
@@ -274,7 +274,7 @@ void SkPictureData::serialize(SkWStream* stream,
     // We delay serializing the bulk of our data until after we've serialized
     // factories and typefaces by first serializing to an in-memory write buffer.
     SkFactorySet factSet;  // buffer refs factSet, so factSet must come first.
-    SkWriteBuffer buffer(SkWriteBuffer::kCrossProcess_Flag);
+    SkBinaryWriteBuffer buffer(SkBinaryWriteBuffer::kCrossProcess_Flag);
     buffer.setFactoryRecorder(&factSet);
     buffer.setPixelSerializer(pixelSerializer);
     buffer.setTypefaceRecorder(typefaceSet);