V18.4.0 CAS plugin

Note that this version does not have Widevine Provisioning 4.0 support.
It is only suitable for device upgrades. A new patch with provisioning
4.0 support will be made later.

tests/Android.bp

@@ -0,0 +1,42 @@
+cc_binary {
+  name: "wv_cas_tests",
+  proprietary: true,
+  srcs: [
+    "src/cas_license_test.cpp",
+    "src/cas_session_map_test.cpp",
+    "src/crypto_session_test.cpp",
+    "src/ecm_parser_test.cpp",
+    "src/ecm_parser_v2_test.cpp",
+    "src/ecm_parser_v3_test.cpp",
+    "src/emm_parser_test.cpp",
+    "src/license_key_status_test.cpp",
+    "src/policy_engine_test.cpp",
+    "src/test_properties.cpp",
+    "src/timer_test.cpp",
+    "src/widevine_cas_api_test.cpp",
+    "src/widevine_cas_session_test.cpp",
+    "src/widevine_media_cas_plugin_test.cpp",
+    "src/wv_cas_test_main.cpp",
+  ],
+  header_libs: [
+    "//vendor/widevine/libwvmediacas/oemcrypto:oemcastroheaders",
+    "media_plugin_headers",
+  ],
+  static_libs: [
+    "//vendor/widevine/libwvmediacas/wvutil:libcasutil",
+    "//vendor/widevine/libwvmediacas/plugin:libwvcasplugins",
+    "//vendor/widevine/libwvmediacas/protos:libcas_protos",
+    "libgmock",
+    "libgtest",
+  ],
+  shared_libs: [
+    "libcrypto",
+    "libutils",
+    "liblog",
+    "libprotobuf-cpp-lite",
+    "libhidlbase",
+  ],
+  proto: {
+    type: "lite",
+  },
+}