Instrumentation tests for apps that provide a testPayload

Reviewed By: AaaChiuuu

Differential Revision: D4873849

fbshipit-source-id: b5235b952faea2e42fb4292fac4ca409e22ecb56

ReactAndroid/src/main/java/com/facebook/react/bridge/ReactMarker.java

@@ -5,6 +5,7 @@ package com.facebook.react.bridge;
 import javax.annotation.Nullable;
 
 import com.facebook.proguard.annotations.DoNotStrip;
+
 /**
  * Static class that allows markers to be placed in React code and responded to in a
  * configurable way
@@ -25,6 +26,11 @@ public class ReactMarker {
     sMarkerListener = listener;
   }
 
+  @DoNotStrip
+  public static void clearMarkerListener() {
+    sMarkerListener = null;
+  }
+
   @DoNotStrip
   public static void logMarker(String name) {
     logMarker(name, null);