Support onKeyDown in Bridgeless (#43466)

Summary:
Pull Request resolved: #43466

Implement `onKeyDown` in Bridgeless by adding it to ReactHostImpl

Changelog:
[Android][Breaking] Implement `onKeyDown` in Bridgeless

Reviewed By: cortinico

Differential Revision: D54870966

fbshipit-source-id: 0f8e48b29679f1bca92f6ac7b6ebf1592cdc5dac

Author: arushikesarwani94

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -154,6 +154,7 @@ public class com/facebook/react/ReactDelegate {
 	public fun onHostDestroy ()V
 	public fun onHostPause ()V
 	public fun onHostResume ()V
+	public fun onKeyDown (ILandroid/view/KeyEvent;)Z
 	public fun onNewIntent (Landroid/content/Intent;)Z
 	public fun onWindowFocusChanged (Z)V
 	public fun shouldShowDevMenuOrReload (ILandroid/view/KeyEvent;)Z

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactActivityDelegate.java

@@ -147,17 +147,7 @@ public void onActivityResult(int requestCode, int resultCode, Intent data) {
   }
 
   public boolean onKeyDown(int keyCode, KeyEvent event) {
-    if (ReactFeatureFlags.enableBridgelessArchitecture) {
-      // TODO T156475655: support onKeyDown
-    } else {
-      if (getReactNativeHost().hasInstance()
-          && getReactNativeHost().getUseDeveloperSupport()
-          && keyCode == KeyEvent.KEYCODE_MEDIA_FAST_FORWARD) {
-        event.startTracking();
-        return true;
-      }
-    }
-    return false;
+    return mReactDelegate.onKeyDown(keyCode, event);
   }
 
   public boolean onKeyUp(int keyCode, KeyEvent event) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/ReactDelegate.java

@@ -184,6 +184,19 @@ public void onConfigurationChanged(Configuration newConfig) {
     }
   }
 
+  public boolean onKeyDown(int keyCode, KeyEvent event) {
+    if (keyCode == KeyEvent.KEYCODE_MEDIA_FAST_FORWARD
+        && ((ReactFeatureFlags.enableBridgelessArchitecture
+                && mReactHost != null
+                && mReactHost.getDevSupportManager() != null)
+            || (getReactNativeHost().hasInstance()
+                && getReactNativeHost().getUseDeveloperSupport()))) {
+      event.startTracking();
+      return true;
+    }
+    return false;
+  }
+
   public void loadApp() {
     loadApp(mMainComponentName);
   }