Drop support for webworkers

Reviewed By: AaaChiuuu

Differential Revision: D4916449

fbshipit-source-id: a447233d3b7cfee98db2ce00f1c0505d513e2429

ReactAndroid/src/main/java/com/facebook/react/module/annotations/ReactModule.java

@@ -13,8 +13,6 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.Target;
 
 import com.facebook.react.bridge.BaseJavaModule;
-import com.facebook.react.bridge.ExecutorToken;
-import com.facebook.react.bridge.ReactContext;
 
 import static java.lang.annotation.ElementType.TYPE;
 import static java.lang.annotation.RetentionPolicy.RUNTIME;
@@ -38,29 +36,6 @@ public @interface ReactModule {
    */
   boolean canOverrideExistingModule() default false;
 
-  /**
-   * In order to support web workers, a module must be aware that it can be invoked from multiple
-   * different JS VMs. Supporting web workers means recognizing things like:
-   *
-   * 1) ids (e.g. timer ids, request ids, etc.) may only unique on a per-VM basis
-   * 2) the module needs to make sure to enqueue callbacks and JS module calls to the correct VM
-   *
-   * In order to facilitate this, modules that support web workers will have all their @ReactMethod-
-   * annotated methods passed a {@link ExecutorToken} as the first parameter before any arguments
-   * from JS. This ExecutorToken internally maps to a specific JS VM and can be used by the
-   * framework to route calls appropriately. In order to make JS module calls correctly, start using
-   * the version of {@link ReactContext#getJSModule(ExecutorToken, Class)} that takes an
-   * ExecutorToken. It will ensure that any calls you dispatch to the returned object will go to
-   * the right VM. For Callbacks, you don't have to do anything special -- the framework
-   * automatically tags them with the correct ExecutorToken when the are created.
-   *
-   * Note: even though calls can come from multiple JS VMs on multiple threads, calls to this module
-   * will still only occur on a single thread.
-   *
-   * @return whether this module supports web workers.
-   */
-  boolean supportsWebWorkers() default false;
-
   /**
    * Whether this module needs to be loaded immediately.
    */

ReactAndroid/src/main/java/com/facebook/react/module/model/ReactModuleInfo.java

@@ -10,19 +10,16 @@ public class ReactModuleInfo {
 
   private final String mName;
   private final boolean mCanOverrideExistingModule;
-  private final boolean mSupportsWebWorkers;
   private final boolean mNeedsEagerInit;
   private final boolean mHasConstants;
 
   public ReactModuleInfo(
     String name,
     boolean canOverrideExistingModule,
-    boolean supportsWebWorkers,
     boolean needsEagerInit,
     boolean hasConstants) {
     mName = name;
     mCanOverrideExistingModule = canOverrideExistingModule;
-    mSupportsWebWorkers = supportsWebWorkers;
     mNeedsEagerInit = needsEagerInit;
     mHasConstants = hasConstants;
   }
@@ -35,10 +32,6 @@ public class ReactModuleInfo {
     return mCanOverrideExistingModule;
   }
 
-  public boolean supportsWebWorkers() {
-    return mSupportsWebWorkers;
-  }
-
   public boolean needsEagerInit() {
     return mNeedsEagerInit;
   }

ReactAndroid/src/main/java/com/facebook/react/module/processing/ReactModuleSpecProcessor.java

@@ -175,7 +175,6 @@ public class ReactModuleSpecProcessor extends AbstractProcessor {
           .append("new ReactModuleInfo(")
           .append("\"").append(reactModule.name()).append("\"").append(", ")
           .append(reactModule.canOverrideExistingModule()).append(", ")
-          .append(reactModule.supportsWebWorkers()).append(", ")
           .append(reactModule.needsEagerInit()).append(", ")
           .append(hasConstants)
           .append(")")