ServiceWorker: Record result of purging stale resources

content/browser/service_worker/service_worker_storage.cc

 // Copyright 2013 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 "content/browser/service_worker/service_worker_storage.h"
 
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 1412 matching lines @@
       id, base::Bind(&ServiceWorkerStorage::OnResourcePurged,
                      weak_factory_.GetWeakPtr(), id));
   if (rv != net::ERR_IO_PENDING)
     OnResourcePurged(id, rv);
 }
 
 void ServiceWorkerStorage::OnResourcePurged(int64 id, int rv) {
   DCHECK(is_purge_pending_);
   is_purge_pending_ = false;
 
+  ServiceWorkerMetrics::RecordPurgeResourceResult(rv);
+
   database_task_manager_->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(base::IgnoreResult(
           &ServiceWorkerDatabase::ClearPurgeableResourceIds),
           base::Unretained(database_.get()),
           std::set<int64>(&id, &id + 1)));
 
+  // Continue purging resources regardless of the previous result.
   ContinuePurgingResources();
 }
 
 void ServiceWorkerStorage::DeleteStaleResources() {
   DCHECK(!has_checked_for_stale_resources_);
   has_checked_for_stale_resources_ = true;
   database_task_manager_->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&ServiceWorkerStorage::CollectStaleResourcesFromDB,
                  database_.get(),
@@ skipping 367 matching lines @@
     callback.Run(SERVICE_WORKER_ERROR_FAILED);
     return;
   }
   DVLOG(1) << "Deleted ServiceWorkerDiskCache successfully.";
   ServiceWorkerMetrics::RecordDeleteAndStartOverResult(
       ServiceWorkerMetrics::DELETE_OK);
   callback.Run(SERVICE_WORKER_OK);
 }
 
 }  // namespace content