Add a counter to calculate the total size of site data.

chrome/browser/browsing_data/site_data_size_collector.cc

Index: chrome/browser/browsing_data/site_data_size_collector.cc
diff --git a/chrome/browser/browsing_data/site_data_size_collector.cc b/chrome/browser/browsing_data/site_data_size_collector.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b355b2864abacd87058004a1a99e84046c4a52c0
--- /dev/null
+++ b/chrome/browser/browsing_data/site_data_size_collector.cc
@@ -0,0 +1,216 @@
+// 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/browsing_data/site_data_size_collector.h"
+
+#include "base/files/file_util.h"
+#include "chrome/common/chrome_constants.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/common/content_constants.h"
+
+SiteDataSizeCollector::SiteDataSizeCollector(
+    const base::FilePath& default_storage_partition_path,
+    BrowsingDataCookieHelper* cookie_helper,
+    BrowsingDataDatabaseHelper* database_helper,
+    BrowsingDataLocalStorageHelper* local_storage_helper,
+    BrowsingDataAppCacheHelper* appcache_helper,
+    BrowsingDataIndexedDBHelper* indexed_db_helper,
+    BrowsingDataFileSystemHelper* file_system_helper,
+    BrowsingDataChannelIDHelper* channel_id_helper,
+    BrowsingDataServiceWorkerHelper* service_worker_helper,
+    BrowsingDataCacheStorageHelper* cache_storage_helper,
+    BrowsingDataFlashLSOHelper* flash_lso_helper)
+    : default_storage_partition_path_(default_storage_partition_path),
+      appcache_helper_(appcache_helper),
+      cookie_helper_(cookie_helper),
+      database_helper_(database_helper),
+      local_storage_helper_(local_storage_helper),
+      indexed_db_helper_(indexed_db_helper),
+      file_system_helper_(file_system_helper),
+      channel_id_helper_(channel_id_helper),
+      service_worker_helper_(service_worker_helper),
+      cache_storage_helper_(cache_storage_helper),
+      flash_lso_helper_(flash_lso_helper),
+      in_flight_operations_(0),
+      total_bytes_(0),
+      weak_ptr_factory_(this) {}
+
+SiteDataSizeCollector::~SiteDataSizeCollector() {
+}
+
+void SiteDataSizeCollector::Fetch(const FetchCallback& callback) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+  DCHECK(!callback.is_null());
+
+  fetch_callback_ = callback;
+  total_bytes_ = 0;
+  in_flight_operations_ = 0;
+
+  if (appcache_helper_.get()) {
+    appcache_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnAppCacheModelInfoLoaded,
+               weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (cookie_helper_.get()) {
+    cookie_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnCookiesModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (database_helper_.get()) {
+    database_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnDatabaseModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (local_storage_helper_.get()) {
+    local_storage_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnLocalStorageModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (indexed_db_helper_.get()) {
+    indexed_db_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnIndexedDBModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (file_system_helper_.get()) {
+    file_system_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnFileSystemModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (channel_id_helper_.get()) {
+    channel_id_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnChannelIDModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (service_worker_helper_.get()) {
+    service_worker_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnServiceWorkerModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (cache_storage_helper_.get()) {
+    cache_storage_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnCacheStorageModelInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+  if (flash_lso_helper_.get()) {
+    flash_lso_helper_->StartFetching(
+        base::Bind(&SiteDataSizeCollector::OnFlashLSOInfoLoaded,
+                   weak_ptr_factory_.GetWeakPtr()));
+    in_flight_operations_++;
+  }
+}
+
+void SiteDataSizeCollector::OnAppCacheModelInfoLoaded(
+    scoped_refptr<content::AppCacheInfoCollection> appcache_info) {
+  int64_t total_size = 0;
+  if (appcache_info.get()) {
+    for (const auto& origin : appcache_info->infos_by_origin) {
+      for (const auto& info : origin.second)
+        total_size += info.size;
+    }
+  }
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnCookiesModelInfoLoaded(
+    const net::CookieList& cookie_list) {
+  int64_t size = 0;

[msramek, 2016/06/30 13:58:11]

nit: Please use |size| or |total_size| in all methods for consistency.

[fukino, 2016/06/30 16:16:13]

Done.

+  if (!cookie_list.empty()) {
+    // Consider cookie file size only when at least one cookie is found.
+    base::FilePath cookie_file_path = default_storage_partition_path_
+        .Append(chrome::kCookieFilename);
+    base::GetFileSize(cookie_file_path, &size);

[msramek, 2016/06/30 13:58:11]

This callback is on the IO thread, right? Can you DCHECK that before calling
GetFileSize()?

[fukino, 2016/06/30 16:16:12]

Oops! OnCookiesModelInfoLoaded is called UI thread.
I updated this CL to interact with files on blocking pool.

+  }
+  OnStorageSizeFetched(size);
+}
+
+void SiteDataSizeCollector::OnDatabaseModelInfoLoaded(
+    const DatabaseInfoList& database_info_list) {
+  int64_t total_size = 0;
+  for (const auto& database_info : database_info_list)
+    total_size += database_info.size;
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnLocalStorageModelInfoLoaded(
+      const LocalStorageInfoList& local_storage_info_list) {
+  int64_t total_size = 0;
+  for (const auto& local_storage_info : local_storage_info_list)
+    total_size += local_storage_info.size;
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnIndexedDBModelInfoLoaded(
+    const std::list<content::IndexedDBInfo>& indexed_db_info_list) {
+  int64_t total_size = 0;
+  for (const auto& indexed_db_info : indexed_db_info_list)
+    total_size += indexed_db_info.size;
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnFileSystemModelInfoLoaded(
+    const FileSystemInfoList& file_system_info_list) {
+  int64_t total_size = 0;
+  for (const auto& file_system_info : file_system_info_list) {
+    for (const auto& usage : file_system_info.usage_map)
+      total_size += usage.second;
+  }
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnChannelIDModelInfoLoaded(
+    const ChannelIDList& channel_id_list) {
+  int64_t size = 0;
+  if (!channel_id_list.empty()) {
+    // Consider channel id file size only when at least one channel id is found.
+    base::FilePath channel_id_file_path = default_storage_partition_path_
+        .Append(chrome::kChannelIDFilename);
+    base::GetFileSize(channel_id_file_path, &size);

[msramek, 2016/06/30 13:58:11]

Ditto here.

[fukino, 2016/06/30 16:16:12]

Done.

+  }
+  OnStorageSizeFetched(size);
+}
+
+void SiteDataSizeCollector::OnServiceWorkerModelInfoLoaded(
+    const ServiceWorkerUsageInfoList& service_worker_info_list) {
+  int64_t total_size = 0;
+  for (const auto& service_worker_info : service_worker_info_list)
+    total_size += service_worker_info.total_size_bytes;
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnCacheStorageModelInfoLoaded(
+      const CacheStorageUsageInfoList& cache_storage_info_list) {
+  int64_t total_size = 0;
+  for (const auto& cache_storage_info : cache_storage_info_list)
+    total_size += cache_storage_info.total_size_bytes;
+  OnStorageSizeFetched(total_size);
+}
+
+void SiteDataSizeCollector::OnFlashLSOInfoLoaded(
+    const FlashLSODomainList& domains) {
+  int64_t size = 0;
+  if (!domains.empty()) {
+    // Consider pepper data directory size only when at least one Flash LSO is

[msramek, 2016/06/30 13:58:10]

Flash is not the only plugin; shouldn't we check instead if
PluginServiceImpl::GetPluginInfoArray() is nonempty?

[fukino, 2016/06/30 16:16:13]

I could not find out what types of plugin data exist and where the files are
written.
Let me go with the Flash-only support and leave a TODO comment for now.

+    // found.
+    base::FilePath pepper_data_dir_path = default_storage_partition_path_

[msramek, 2016/06/30 13:58:10]

And here.

[fukino, 2016/06/30 16:16:13]

Done.

+        .Append(content::kPepperDataDirname);
+    size = base::ComputeDirectorySize(pepper_data_dir_path);
+  }
+  OnStorageSizeFetched(size);
+}
+
+void SiteDataSizeCollector::OnStorageSizeFetched(int64_t size) {
+  total_bytes_ += size;
+  if (--in_flight_operations_ == 0)
+    fetch_callback_.Run(total_bytes_);
+}