[Android WebAPK] Change WebAPK update into two phases

chrome/browser/android/webapk/webapk_update_manager.h

Index: chrome/browser/android/webapk/webapk_update_manager.h
diff --git a/chrome/browser/android/webapk/webapk_update_manager.h b/chrome/browser/android/webapk/webapk_update_manager.h
index db1962331d5d71246065fc54d6215f9f8f5ca228..6040726dd08ccd6ca7039b5bf32c62663669746a 100644
--- a/chrome/browser/android/webapk/webapk_update_manager.h
+++ b/chrome/browser/android/webapk/webapk_update_manager.h
@@ -18,15 +18,6 @@ class WebApkUpdateManager {
   // Registers JNI hooks.
   static bool Register(JNIEnv* env);
 
-  // Called after either a request to update the WebAPK has been sent, or the
-  // update process fails. |success| indicates whether the request was issued
-  // to the server. A "true" value of |success| does not guarantee that the
-  // WebAPK will be successfully updated.
-  static void OnBuiltWebApk(const std::string& id,
-                            WebApkInstallResult result,
-                            bool relax_updates,
-                            const std::string& webapk_package);
-
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebApkUpdateManager);
 };