Issue 501916 : Add data type counts to profile deletion flow

chrome/browser/profiles/profile_statistics.h

+// Copyright 2015 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.
+
+#ifndef CHROME_BROWSER_PROFILES_PROFILE_STATISTICS_H_
+#define CHROME_BROWSER_PROFILES_PROFILE_STATISTICS_H_
+
+#include <string>
+#include <utility>
+#include <vector>
+#include "base/task/cancelable_task_tracker.h"
+#include "chrome/browser/profiles/profile.h"
+
+namespace profiles {
+
+// Definition of the return value of |ProfileStatisticsCallback|.
+// The data stored in |ProfileStatisticsValues| looks like this:
+// <"Browsing History", 912>, <"Passwords", 71>, <"Bookmarks", 120>,
+// <"Settings", 200>
+typedef std::vector<std::pair<std::string, int> > ProfileStatisticsValues;
+
+// Definition of the callback function. Note that a copy of
+// |ProfileStatisticsValues| is made each time the callback is called.
+typedef base::Callback<void(ProfileStatisticsValues)>
+    ProfileStatisticsCallback;
+
+// This fucntion collects statistical information about |profile| and returns

[Mike Lerman, 2015/08/05 19:26:09]

nit: spelling (fucntion/function)

[lwchkg, 2015/08/06 04:32:59]

Acknowledged.

+// the information via |callback|. Currently bookmarks, history, logins and
+// preferences are counted. The callback function may be called more than once.

[Mike Lerman, 2015/08/05 19:26:09]

I'd replace "may" with "will probably", before "be called more than once".

[lwchkg, 2015/08/06 04:32:59]

Acknowledged.

+void GetProfileStatistics(Profile* profile,
+                          const ProfileStatisticsCallback& callback,
+                          base::CancelableTaskTracker* tracker);
+
+}  // namespace profiles
+
+#endif  // CHROME_BROWSER_PROFILES_PROFILE_STATISTICS_H_