DNC - JSON of flattenables, with field names.

src/effects/SkImageSource.cpp

Index: src/effects/SkImageSource.cpp
diff --git a/src/effects/SkImageSource.cpp b/src/effects/SkImageSource.cpp
index f3fc05491e1706d01f2ca6a9e11e9caf349620aa..727393c359328306942d3a6e8e03ed0be0616389 100644
--- a/src/effects/SkImageSource.cpp
+++ b/src/effects/SkImageSource.cpp
@@ -71,10 +71,10 @@ sk_sp<SkFlattenable> SkImageSource::CreateProc(SkReadBuffer& buffer) {
 }
 
 void SkImageSource::flatten(SkWriteBuffer& buffer) const {
-    buffer.writeInt(fFilterQuality);
-    buffer.writeRect(fSrcRect);
-    buffer.writeRect(fDstRect);
-    buffer.writeImage(fImage.get());
+    buffer.writeInt("fFilterQuality", fFilterQuality);
+    buffer.writeRect("fSrcRect", fSrcRect);
+    buffer.writeRect("fDstRect", fDstRect);
+    buffer.writeImage("fImage", fImage.get());
 }
 
 sk_sp<SkSpecialImage> SkImageSource::onFilterImage(SkSpecialImage* source, const Context& ctx,