Change CookieStore::DeleteCallback to take uint32_t.

ios/net/cookies/cookie_store_ios.mm

Index: ios/net/cookies/cookie_store_ios.mm
diff --git a/ios/net/cookies/cookie_store_ios.mm b/ios/net/cookies/cookie_store_ios.mm
index edb3bad1c6b2599672c07798dfbdd340217a7dab..a61c4b08a6ec53ed6aee1749c4a1ddbd461fbbc4 100644
--- a/ios/net/cookies/cookie_store_ios.mm
+++ b/ios/net/cookies/cookie_store_ios.mm
@@ -7,6 +7,8 @@
 #import <Foundation/Foundation.h>
 #include <stddef.h>
 
+#include <cstdint>

[mmenke, 2017/07/05 16:58:49]

nit:  This is included in the header, so not needed.

[Randy Smith (Not in Mondays), 2017/07/08 13:03:26]

Done.

+
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ -861,7 +863,7 @@ void CookieStoreIOS::UpdateCachesAfterSet(SetCookiesCallback callback,
 }
 
 void CookieStoreIOS::UpdateCachesAfterDelete(DeleteCallback callback,
-                                             int num_deleted) {
+                                             uint32_t num_deleted) {
   DCHECK(thread_checker_.CalledOnValidThread());
   UpdateCachesFromCookieMonster();
   if (!callback.is_null())