Add EllipticCurveDiffieHellmanExchange.

Test: unit test
Bug: 200231384
Change-Id: I84c043815772d2c8ebf87a5e94dec052cd7b3db6
diff --git a/nearby/tests/Android.bp b/nearby/tests/Android.bp
index 76b3683..ed20b7e 100644
--- a/nearby/tests/Android.bp
+++ b/nearby/tests/Android.bp
@@ -34,6 +34,8 @@
     static_libs: [
         "androidx.test.rules",
         "framework-nearby-pre-jarjar",
+        "guava",
+        "libprotobuf-java-lite",
         "platform-test-annotations",
         "service-nearby",
         "truth-prebuilt",