Implement server-suggested update check backoff

chrome/browser/android/webapk/webapk_install_service.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/webapk/webapk_install_service.h"
 
 #include "base/bind.h"
 #include "chrome/browser/android/shortcut_info.h"
 #include "chrome/browser/android/webapk/webapk_install_service_factory.h"
 #include "chrome/browser/android/webapk/webapk_installer.h"
@@ skipping 46 matching lines @@
       webapk_version, icon_url_to_murmur2_hash, is_manifest_stale,
       base::Bind(&WebApkInstallService::OnFinishedInstall,
                  weak_ptr_factory_.GetWeakPtr(), shortcut_info.manifest_url,
                  finish_callback));
 }
 
 void WebApkInstallService::OnFinishedInstall(
     const GURL& web_manifest_url,
     const FinishCallback& finish_callback,
     bool success,
-    const std::string& webapk_package_name) {
-  finish_callback.Run(success, webapk_package_name);
+    const std::string& webapk_package_name,
+    bool less_updates) {

[dominickn, 2017/02/14 04:13:34]

relax_updates

[Xi Han, 2017/02/14 22:25:47]

Done.

+  finish_callback.Run(success, webapk_package_name, less_updates);
   installs_.erase(web_manifest_url);
 }