Add support for row-by-row jpeg encoding

Reland of:
https://skia-review.googlesource.com/c/14641/

Bug: 713862
Change-Id: I9dca5ede4ebf569c5f80edcfb23a506b6cfa935e
Reviewed-on: https://skia-review.googlesource.com/15144
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/gn/tests.gni b/gn/tests.gni
index ffd8b41..be4389b 100644
--- a/gn/tests.gni
+++ b/gn/tests.gni
@@ -63,6 +63,7 @@
   "$_tests/DynamicHashTest.cpp",
   "$_tests/EGLImageTest.cpp",
   "$_tests/EmptyPathTest.cpp",
+  "$_tests/EncodeTest.cpp",
   "$_tests/ExifTest.cpp",
   "$_tests/F16StagesTest.cpp",
   "$_tests/FillPathTest.cpp",