Merge "Enable flattening/unflattening with custom unflatten procs" into master-skia

https://skia.googlesource.com/skia/+/a3b3b238f507a6ec7f43febc6bf0bb17e04e770f

Change-Id: Ie9e7fa7e443a23ff53eabbf59984e5ae891f48d1
diff --git a/dm/Android.mk b/dm/Android.mk
index 130070f..ff37117 100644
--- a/dm/Android.mk
+++ b/dm/Android.mk
@@ -130,6 +130,7 @@
 	../tests/ExifTest.cpp \
 	../tests/FillPathTest.cpp \
 	../tests/FitsInTest.cpp \
+	../tests/FlattenableCustomFactory.cpp \
 	../tests/FlattenableFactoryToName.cpp \
 	../tests/Float16Test.cpp \
 	../tests/FloatingPointTextureTest.cpp \