Upgrade rust/crates/protobuf to 2.17.0
* Android.bp was regenerated. New rustc warnings were found.
* Keep local change in src/lib.rs to include out/version.rs.
* Update out/version.rs to the new version.
Change-Id: I9c2f7d412dcd42fe3769505629e05ab949300fe6
Test: make
diff --git a/src/json/mod.rs b/src/json/mod.rs
new file mode 100644
index 0000000..2755aad
--- /dev/null
+++ b/src/json/mod.rs
@@ -0,0 +1,8 @@
+//! JSON serialization and deserialization.
+//!
+//! (Implemented in master, but not ported to stable branch yet).
+
+mod json_name;
+
+#[doc(hidden)]
+pub use self::json_name::json_name;