Add a distribution JAR for WebRTC Android SDK.

webrtc/sdk/android/BUILD.gn

 # Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//webrtc/build/webrtc.gni")
 import("//build/config/android/config.gni")
@@ skipping 166 matching lines @@
 }
 
 android_library("libjingle_peerconnection_metrics_default_java") {
   java_files = [ "api/org/webrtc/Metrics.java" ]
 
   deps = [
     "//webrtc/base:base_java",
   ]
 }
 
+dist_jar("libwebrtc") {
+  deps = [
+    ":libjingle_peerconnection_metrics_default_java",
+  ]
+  output_jar_path = "$target_out_dir/libwebrtc.jar"
+}
+
 if (rtc_include_tests) {
   instrumentation_test_apk("libjingle_peerconnection_android_unittest") {
     apk_name = "libjingle_peerconnection_android_unittest"
     android_manifest = "instrumentationtests/AndroidManifest.xml"
 
     java_files = [
       "instrumentationtests/src/org/webrtc/Camera1CapturerUsingByteBufferTest.java",
       "instrumentationtests/src/org/webrtc/Camera1CapturerUsingTextureTest.java",
       "instrumentationtests/src/org/webrtc/Camera2CapturerTest.java",
       "instrumentationtests/src/org/webrtc/CameraVideoCapturerTestFixtures.java",
@@ skipping 15 matching lines @@
       "//third_party/android_support_test_runner:runner_java",
       "//third_party/junit",
       "//webrtc/base:base_java",
       "//webrtc/sdk/android:libjingle_peerconnection_java",
       "//webrtc/sdk/android:libjingle_peerconnection_metrics_default_java",
     ]
 
     shared_libraries = [ "//webrtc/sdk/android:libjingle_peerconnection_so" ]
   }
 }