Change CookieStore::DeleteCallback to take uint32_t.

ios/chrome/browser/browsing_data/ios_chrome_browsing_data_remover.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 IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_
 #define IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_
 
+#include <stdint.h>
+
 #include <memory>
 #include <set>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
@@ skipping 164 matching lines @@
   void OnClearedNetworkingHistory();
 
   // Callback for when the cache has been deleted. Invokes
   // NotifyAndDeleteIfDone.
   void OnClearedCache(int error);
 
   // Callback for when passwords for the requested time range have been cleared.
   void OnClearedPasswords();
 
   // Callback for when Cookies has been deleted. Invokes NotifyAndDeleteIfDone.
-  void OnClearedCookies(int num_deleted);
+  void OnClearedCookies(uint32_t num_deleted);
 
   // Invoked on the IO thread to delete cookies.
   void ClearCookiesOnIOThread(
       const scoped_refptr<net::URLRequestContextGetter>& rq_context);
 
   // Invoked on the IO thread to delete channel IDs.
   void ClearChannelIDsOnIOThread(
       const scoped_refptr<net::URLRequestContextGetter>& rq_context);
 
   // Callback on IO Thread when channel IDs have been deleted. Clears SSL
@@ skipping 53 matching lines @@
 
   // Used if we need to clear history.
   base::CancelableTaskTracker history_task_tracker_;
 
   std::unique_ptr<TemplateURLService::Subscription> template_url_sub_;
 
   DISALLOW_COPY_AND_ASSIGN(IOSChromeBrowsingDataRemover);
 };
 
 #endif  // IOS_CHROME_BROWSER_BROWSING_DATA_IOS_CHROME_BROWSING_DATA_REMOVER_H_