Web extension native messaging from content script is broken about geckoview

[jackyzy823]

Perhaps you could take Fenix's usage as a reference. See https://github.com/mozilla-mobile/firefox-android/blob/main/android-components/components/feature/accounts/src/main/assets/extensions/fxawebchannel/fxawebchannel.js and https://github.com/mozilla-mobile/firefox-android/blob/1ddd339f2661e4ec75318767a1b622cb66eeb55f/android-components/components/support/webextensions/src/main/java/mozilla/components/support/webextensions/WebExtensionController.kt

[marcellinuskristanto]

for native messaging from content_scripts, make sure you call setMessageDelegate from TabSession.WebExtensionController like this

runtime.getWebExtensionController().ensureBuiltIn(EXTENSION_LOCATION, "[email protected]").accept(
            extension -> session.getWebExtensionController()
                .setMessageDelegate(extension, messageDelegate, "browser"),
            e -> Log.e("MessageDelegate", "Error registering extension", e)
        );

instead of

runtime.getWebExtensionController().ensureBuiltIn(EXTENSION_LOCATION, "[email protected]").accept(
            extension -> extension.setMessageDelegate(messageDelegate, "browser"),
            e -> Log.e("MessageDelegate", "Error registering extension", e)
        );