Count number of origins with data affected by clearing "cookies and site data".

chrome/browser/browsing_data/cookie_counting_helper.h

+// Copyright (c) 2016 The Chromium Authors. All rights reserved.

[msramek, 2017/01/09 12:54:44]

Ditto.

[dullweber, 2017/01/09 16:05:46]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_BROWSING_DATA_COOKIE_COUNTING_HELPER_H_
+#define CHROME_BROWSER_BROWSING_DATA_COOKIE_COUNTING_HELPER_H_
+
+#include <set>
+#include "net/cookies/canonical_cookie.h"
+#include "net/ssl/channel_id_store.h"
+#include "storage/common/quota/quota_types.h"
+
+class Profile;
+class BrowsingDataFlashLSOHelper;
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+namespace content {
+struct LocalStorageUsageInfo;
+struct SessionStorageUsageInfo;
+}
+
+namespace storage {
+class SpecialStoragePolicy;
+}
+
+// Helper class that counts the number of unique origins, that are affected by
+// deleting "cookies and site data" in the CBD dialog.
+class CookieCountingHelper {

[msramek, 2017/01/09 12:54:43]

Note that we have SiteDataSizeCollector (used in chrome://settings/ -> Device ->
Storage management, at least on ChromeOS, not sure about Desktop).

Can it be reused to simplify this class? I know that SiteDataSizeCollector
misses a few things (e.g. the website settings), but most of the stuff should be
there.

[dullweber, 2017/01/09 16:05:46]

The SiteDataSizeCollector uses the same helper classes as the CookieTreeModel. I
think the structure of shared helper classes to retrieve the relevant
information is very nice but the helpers currently don't support retrieval of
data by timestamp. Also the logic of what exactly is site_data differs slightly
between the CookieTreeModel and the CBD dialog. I don't think that is a good
idea to differ between these dialogs as I thought that settings/cookies is just
a detail view for what is considered "cookies and site data" in CBD. Should I
see if I can extend the helper classes and maybe later also change the deletion
to use these helpers?

+ public:
+  explicit CookieCountingHelper(Profile* profile,
+                                base::Time begin,
+                                base::Callback<void(int)> completion_callback);
+  ~CookieCountingHelper();
+
+  void CountAndDestroySelfWhenFinished();
+
+ private:
+  void GetCookiesOnIOThread(
+      const scoped_refptr<net::URLRequestContextGetter>& rq_context);
+  void GetCookiesCallback(const net::CookieList& cookies);
+  void GetSessionStorageUsageInfoCallback(
+      const scoped_refptr<storage::SpecialStoragePolicy>&
+          special_storage_policy,
+      const std::vector<content::SessionStorageUsageInfo>& infos);
+  void GetLocalStorageUsageInfoCallback(
+      const scoped_refptr<storage::SpecialStoragePolicy>&
+          special_storage_policy,
+      const std::vector<content::LocalStorageUsageInfo>& infos);
+  void GetQuotaOriginsCallback(const std::set<GURL>& origin_set,
+                               storage::StorageType type);
+  void SitesWithFlashDataCallback(const std::vector<std::string>& sites);
+  void GetChannelIDsOnIOThread(
+      const scoped_refptr<net::URLRequestContextGetter>& rq_context);
+  void GetChannelIDsCallback(
+      const net::ChannelIDStore::ChannelIDList& channel_ids);
+
+  void Done(const std::vector<GURL>& origins);
+
+  Profile* profile_;
+  base::Time begin_;
+  base::Callback<void(int)> completion_callback_;
+  int tasks_;
+  std::set<GURL> unique_origins_;
+  scoped_refptr<BrowsingDataFlashLSOHelper> flash_lso_helper_;
+};
+
+#endif  // CHROME_BROWSER_BROWSING_DATA_COOKIE_COUNTING_HELPER_H_