Implement server-suggested update check backoff

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 b6f37c7a80d9acada8fc57976c037ec8abf0cd79..a1f5831fcd8a5b665360f579bfe53975ef7d83de 100644
--- a/chrome/browser/android/webapk/webapk_update_manager.h
+++ b/chrome/browser/android/webapk/webapk_update_manager.h
@@ -7,6 +7,7 @@
 
 #include "base/android/jni_android.h"
 #include "base/macros.h"
+#include "chrome/browser/android/webapk/webapk_install_service.h"
 
 // WebApkUpdateManager is the C++ counterpart of org.chromium.chrome.browser's
 // WebApkUpdateManager in Java. It calls WebApkInstaller to send an update
@@ -20,9 +21,10 @@ class WebApkUpdateManager {
   // 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,
-                            bool success,
-                            const std::string& webapk_package);
+  static void OnBuiltWebApk(
+      const std::string& id,
+      bool success,
+      const WebApkInstallService::FinishCallbackData& data);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebApkUpdateManager);