Expose way for native modules to modify JSC context

Reviewed By: svcscm

Differential Revision: D2933197

fb-gh-sync-id: 32eb943ab341804343bbcadd29f0377fccf75de6
shipit-source-id: 32eb943ab341804343bbcadd29f0377fccf75de6

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

@@ -59,6 +59,15 @@ public interface NativeModule {
    */
   boolean canOverrideExistingModule();
 
+  /**
+   * Called on the JS thread after a ReactBridge has been created. This is useful for native modules
+   * that need to do any setup before the JS bundle has been loaded. An example of this would be
+   * installing custom functionality into the JavaScriptCore context.
+   *
+   * @param bridge the ReactBridge instance that has just been created
+   */
+  void onReactBridgeInitialized(ReactBridge bridge);
+
   /**
    * Called before {CatalystInstance#onHostDestroy}
    */