Add a build module for the Netty Shaded library

The gRPC documentation recommends that most users use the Netty Shaded
library for Transport Layer Security (TLS) on non-Android platforms. The
library prepackages netty-tcnative on BoringSSL which makes it easier to
use.

Note that this change essentially restores the module which was deleted
in a previous commit. This new binary is imported for the same version
that the source is currently at and does not cause any runtime issues.

Test: m grpc-java-netty-shaded
Bug: 148404241
Change-Id: I7ae611add53627d2c00beeeac829fa31069d5594

1 files changed, 27 insertions, 0 deletions

diff --git a/netty/shaded/Android.bp b/netty/shaded/Android.bp
new file mode 100644
index 000000000..5aecf42ba
--- /dev/null
+++ b/netty/shaded/Android.bp
@@ -0,0 +1,27 @@
+//
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// The below module imports the Netty shaded binary from the Maven repository
+// since it's not trivial to build from source due to the large number of
+// external dependencies and missing build-system support.
+//
+// WARNING: The artifact version must match the source to avoid runtime issues.
+java_library_host {
+    name: "grpc-java-netty-shaded",
+    static_libs: [
+        "grpc-netty-shaded-1.16.1-jar",
+    ],
+}