Add calls to the server to request WebAPK updates.

chrome/browser/android/chrome_jni_registrar.cc

Index: chrome/browser/android/chrome_jni_registrar.cc
diff --git a/chrome/browser/android/chrome_jni_registrar.cc b/chrome/browser/android/chrome_jni_registrar.cc
index 205802fca8048ca730b86ceebf7584fe80db3f4e..f3d2f1f4ba81fac3812452462a9e21d23e16ccb0 100644
--- a/chrome/browser/android/chrome_jni_registrar.cc
+++ b/chrome/browser/android/chrome_jni_registrar.cc
@@ -103,6 +103,7 @@
 #include "chrome/browser/android/web_contents_factory.h"
 #include "chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h"
 #include "chrome/browser/android/webapk/webapk_installer.h"
+#include "chrome/browser/android/webapk/webapk_update_manager.h"
 #include "chrome/browser/android/webapps/add_to_homescreen_dialog_helper.h"
 #include "chrome/browser/android/webapps/webapp_registry.h"
 #include "chrome/browser/autofill/android/personal_data_manager_android.h"
@@ -408,6 +409,7 @@ static base::android::RegistrationMethod kChromeRegisteredMethods[] = {
     {"VariationsSession", chrome::android::RegisterVariationsSession},
     {"WarmupManager", RegisterWarmupManager},
     {"WebApkInstaller", WebApkInstaller::Register},
+    {"WebApkUpdateManager", WebApkUpdateManager::Register},
     {"WebappRegistry", WebappRegistry::RegisterWebappRegistry},
     {"WebContentsFactory", RegisterWebContentsFactory},
     {"WebsitePreferenceBridge", RegisterWebsitePreferenceBridge},