[ServiceWorkerCache] Implement storage::QuotaClient

content/browser/service_worker/service_worker_cache_quota_client.cc

+// Copyright 2014 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_cache_quota_client.h"
+
+#include "content/browser/service_worker/service_worker_cache_storage_manager.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace content {
+
+ServiceWorkerCacheQuotaClient::ServiceWorkerCacheQuotaClient(
+    base::WeakPtr<ServiceWorkerCacheStorageManager> cache_manager)
+    : cache_manager_(cache_manager) {
+}
+
+ServiceWorkerCacheQuotaClient::~ServiceWorkerCacheQuotaClient() {
+}
+
+storage::QuotaClient::ID ServiceWorkerCacheQuotaClient::id() const {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  return kServiceWorkerCache;
+}
+
+void ServiceWorkerCacheQuotaClient::OnQuotaManagerDestroyed() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  delete this;
+}
+
+void ServiceWorkerCacheQuotaClient::GetOriginUsage(
+    const GURL& origin_url,
+    storage::StorageType type,
+    const GetUsageCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  if (!cache_manager_ || !DoesSupport(type)) {
+    callback.Run(0);
+    return;
+  }
+
+  cache_manager_->GetOriginUsage(origin_url, callback);
+}
+
+void ServiceWorkerCacheQuotaClient::GetOriginsForType(
+    storage::StorageType type,
+    const GetOriginsCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  if (!cache_manager_ || !DoesSupport(type)) {
+    callback.Run(std::set<GURL>());
+    return;
+  }
+
+  cache_manager_->GetOrigins(callback);
+}
+
+void ServiceWorkerCacheQuotaClient::GetOriginsForHost(
+    storage::StorageType type,
+    const std::string& host,
+    const GetOriginsCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  if (!cache_manager_ || !DoesSupport(type)) {
+    callback.Run(std::set<GURL>());
+    return;
+  }
+
+  cache_manager_->GetOriginsForHost(host, callback);
+}
+
+void ServiceWorkerCacheQuotaClient::DeleteOriginData(
+    const GURL& origin,
+    storage::StorageType type,
+    const DeletionCallback& callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  if (!cache_manager_) {
+    callback.Run(storage::kQuotaErrorAbort);
+    return;
+  }
+
+  if (!DoesSupport(type)) {
+    callback.Run(storage::kQuotaStatusOk);
+    return;
+  }
+
+  cache_manager_->DeleteOriginData(origin, callback);
+}
+
+bool ServiceWorkerCacheQuotaClient::DoesSupport(
+    storage::StorageType type) const {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  return type == storage::kStorageTypeTemporary;
+}
+
+}  // namespace content