Fix media picking not working

Summary:
Media picking wasn't working for Venice because we didn't implement onActivityResult in BridgelessReactFragment so the listener in FBProfileGemstoneReactModule didn't called.

Changelog:
[Android][Changed] - Added Nullable annotation

Reviewed By: mdvacca

Differential Revision: D27045861

fbshipit-source-id: 0ab2961ef0570d92259856b4132507ebb264eb9d

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

@@ -9,6 +9,7 @@ package com.facebook.react.bridge;
 
 import android.app.Activity;
 import android.content.Intent;
+import javax.annotation.Nullable;
 
 /**
  * Listener for receiving activity events. Consider using {@link BaseActivityEventListener} if
@@ -17,7 +18,7 @@ import android.content.Intent;
 public interface ActivityEventListener {
 
   /** Called when host (activity/service) receives an {@link Activity#onActivityResult} call. */
-  void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data);
+  void onActivityResult(Activity activity, int requestCode, int resultCode, @Nullable Intent data);
 
   /** Called when a new intent is passed to the activity */
   void onNewIntent(Intent intent);

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

@@ -9,6 +9,7 @@ package com.facebook.react.bridge;
 
 import android.app.Activity;
 import android.content.Intent;
+import javax.annotation.Nullable;
 
 /** An empty implementation of {@link ActivityEventListener} */
 public class BaseActivityEventListener implements ActivityEventListener {
@@ -18,7 +19,8 @@ public class BaseActivityEventListener implements ActivityEventListener {
   public void onActivityResult(int requestCode, int resultCode, Intent data) {}
 
   @Override
-  public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {}
+  public void onActivityResult(
+      Activity activity, int requestCode, int resultCode, @Nullable Intent data) {}
 
   @Override
   public void onNewIntent(Intent intent) {}

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

@@ -305,7 +305,8 @@ public class ReactContext extends ContextWrapper {
   }
 
   /** Should be called by the hosting Fragment in {@link Fragment#onActivityResult} */
-  public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
+  public void onActivityResult(
+      Activity activity, int requestCode, int resultCode, @Nullable Intent data) {
     for (ActivityEventListener listener : mActivityEventListeners) {
       try {
         listener.onActivityResult(activity, requestCode, resultCode, data);