Upgrade kotlinx.serialization to v1.6.3main

This project was upgraded with external_updater.
Usage: tools/external_updater/updater.sh update external/kotlinx.serialization
For more info, check https://cs.android.com/android/platform/superproject/+/main:tools/external_updater/README.md

Test: TreeHugger
Change-Id: I0a33712c9ac0a953307b3e8c3470f29cdd6dcaec

1 files changed, 20 insertions, 0 deletions

diff --git a/formats/json-tests/jvmTest/src/kotlinx/serialization/test/JsonHelpers.kt b/formats/json-tests/jvmTest/src/kotlinx/serialization/test/JsonHelpers.kt
new file mode 100644
index 00000000..9220bbd3
--- /dev/null
+++ b/formats/json-tests/jvmTest/src/kotlinx/serialization/test/JsonHelpers.kt
@@ -0,0 +1,20 @@
+package kotlinx.serialization.test
+
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.SerializationStrategy
+import kotlinx.serialization.json.*
+import java.io.ByteArrayOutputStream
+
+actual fun <T> Json.encodeViaStream(
+    serializer: SerializationStrategy<T>,
+    value: T
+): String {
+    val output = ByteArrayOutputStream()
+    encodeToStream(serializer, value, output)
+    return output.toString(Charsets.UTF_8.name())
+}
+
+actual fun <T> Json.decodeViaStream(
+    serializer: DeserializationStrategy<T>,
+    input: String
+): T = decodeFromStream(serializer, input.byteInputStream())