WebWorkers: Allow web worker owner to inject globals into worker, supply modified __fbBatchedBridgeConfig

Summary: Now that web workers are just JSCExecutors, we can move forward with adding native module support. The means we need to supply the worker with a correct __fbBatchedBridgeConfig global so it can appropriately set up its JS MessageQueue. Unfortunately, native modules can't support multiple JS execution contexts out-of-the-box, so we need to whitelist those modules that actually can be referenced from a webworker. In order to do that, we add the supportsWebWorkers call in NativeModule and the SupportsWebWorkers annotation for JS modules. These add metadata to __fbBatchedBridgeConfig which allows us to create a new config with only those modules that support web workers.

Reviewed By: lexs

Differential Revision: D2927091

fb-gh-sync-id: 9b47331253b277940b552e7d899198b5f0a3ed8c
shipit-source-id: 9b47331253b277940b552e7d899198b5f0a3ed8c

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

@@ -72,4 +72,9 @@ public interface NativeModule {
    * Called before {CatalystInstance#onHostDestroy}
    */
   void onCatalystInstanceDestroy();
+
+  /**
+   * Whether this native module supports calls from web workers. Ignored for now.
+   */
+  boolean supportsWebWorkers();
 }