Stub Binder API.

Provide a stub API for AOSP code to call.

Test: builds
Bug: 32715088
Change-Id: Iab74d269e795a722e82fd3fa304200d57d152f57

core/java/android/os/Binder.java

@@ -129,6 +129,17 @@ public class Binder implements IBinder {
         return sTransactionTracker;
     }
 
+    /** @hide */
+    public static IBinder allowBlocking(IBinder binder) {
+        // NOTE: real implementation on internal branch
+        return binder;
+    }
+
+    /** @hide */
+    public static void copyAllowBlocking(IBinder fromBinder, IBinder toBinder) {
+        // NOTE: real implementation on internal branch
+    }
+
     /* mObject is used by native code, do not remove or rename */
     private long mObject;
     private IInterface mOwner;