CookieStore: Remove reference counting.

net/cookies/cookie_monster.h

Index: net/cookies/cookie_monster.h
diff --git a/net/cookies/cookie_monster.h b/net/cookies/cookie_monster.h
index 8c3944095673ebd31fefb6562d4b67b2fe7cb513..66aeaec2d9cabaac2c3108e03d6398806aa20cb8 100644
--- a/net/cookies/cookie_monster.h
+++ b/net/cookies/cookie_monster.h
@@ -144,6 +144,8 @@ class NET_EXPORT CookieMonster : public CookieStore {
                 CookieMonsterDelegate* delegate,
                 int last_access_threshold_milliseconds);
 
+  ~CookieMonster() override;
+
   // Replaces all the cookies by |list|. This method does not flush the backend.
   void SetAllCookiesAsync(const CookieList& list,
                           const SetCookiesCallback& callback);
@@ -381,8 +383,6 @@ class NET_EXPORT CookieMonster : public CookieStore {
   // Record statistics every kRecordStatisticsIntervalSeconds of uptime.
   static const int kRecordStatisticsIntervalSeconds = 10 * 60;
 
-  ~CookieMonster() override;
-
   // The following are synchronous calls to which the asynchronous methods
   // delegate either immediately (if the store is loaded) or through a deferred
   // task (if the store is not yet loaded).