Android: Generate JNI code for remaining classes in sdk/android

Bug: webrtc:8278
Change-Id: I20a4388ab347d8745d0edde808f7a0b610f077f9
Reviewed-on: https://webrtc-review.googlesource.com/31484
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21227}
diff --git a/sdk/android/api/org/webrtc/TurnCustomizer.java b/sdk/android/api/org/webrtc/TurnCustomizer.java
index 7c68bd1..f2cdcb1 100644
--- a/sdk/android/api/org/webrtc/TurnCustomizer.java
+++ b/sdk/android/api/org/webrtc/TurnCustomizer.java
@@ -19,9 +19,13 @@
   }
 
   public void dispose() {
-    nativeFreeTurnCustomizer(nativeTurnCustomizer);
+    freeNativeTurnCustomizer(nativeTurnCustomizer);
   }
 
-  private static native void nativeFreeTurnCustomizer(
-      long nativeTurnCustomizer);
+  private static native void freeNativeTurnCustomizer(long nativeTurnCustomizer);
+
+  @CalledByNative
+  long getNativeTurnCustomizer() {
+    return nativeTurnCustomizer;
+  }
 }