Implement server-suggested update check backoff

chrome/browser/android/webapk/webapk_update_manager.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_update_manager.h"
 
 #include <jni.h>
 
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
@@ skipping 12 matching lines @@
 using base::android::JavaParamRef;
 
 // static
 bool WebApkUpdateManager::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 // static
 void WebApkUpdateManager::OnBuiltWebApk(const std::string& id,
                                         bool success,
+                                        bool relax_updates,
                                         const std::string& webapk_package) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
   if (success) {
     DVLOG(1)
         << "Sent request to update WebAPK to server. Seems to have worked.";
   } else {
     LOG(WARNING) << "Server request to update WebAPK failed.";
   }
 
   base::android::ScopedJavaLocalRef<jstring> java_id =
       base::android::ConvertUTF8ToJavaString(env, id);
-  Java_WebApkUpdateManager_onBuiltWebApk(env, java_id.obj(), success);
+  Java_WebApkUpdateManager_onBuiltWebApk(env, java_id.obj(), success,
+                                         relax_updates);
 }
 
 // static JNI method.
 static void UpdateAsync(
     JNIEnv* env,
     const JavaParamRef<jclass>& clazz,
     const JavaParamRef<jstring>& java_id,
     const JavaParamRef<jstring>& java_start_url,
     const JavaParamRef<jstring>& java_scope,
     const JavaParamRef<jstring>& java_name,
@@ skipping 53 matching lines @@
       gfx::CreateSkBitmapFromJavaBitmap(java_bitmap_lock);
   best_primary_icon_bitmap.setImmutable();
 
   std::string webapk_package;
   ConvertJavaStringToUTF8(env, java_webapk_package, &webapk_package);
 
   WebApkInstallService* install_service = WebApkInstallService::Get(profile);
   if (install_service->IsInstallInProgress(info.manifest_url)) {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
-        base::Bind(&WebApkUpdateManager::OnBuiltWebApk, id, false, ""));
+        base::Bind(&WebApkUpdateManager::OnBuiltWebApk, id, false /* success */,
+                   false /* relax_updates */, "" /* webapk_package */));
     return;
   }
   install_service->UpdateAsync(
       info, best_primary_icon_bitmap, webapk_package, java_webapk_version,
       icon_url_to_murmur2_hash, java_is_manifest_stale,
       base::Bind(&WebApkUpdateManager::OnBuiltWebApk, id));
 }