Implementing EvictedDomainCookieCounter to keep user metrics on cookie eviction and reinstatement.

net/cookies/cookie_monster.h

 // Copyright (c) 2012 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.
 
 // Brought to you by the letter D and the number 2.
 
 #ifndef NET_COOKIES_COOKIE_MONSTER_H_
 #define NET_COOKIES_COOKIE_MONSTER_H_
 
 #include <deque>
@@ skipping 628 matching lines @@
   bool persist_session_cookies_;
 
   // Static setting for whether or not file scheme cookies are allows when
   // a new CookieMonster is created, or the accepted schemes on a CookieMonster
   // instance are reset back to defaults.
   static bool default_enable_file_scheme_;
 
   DISALLOW_COPY_AND_ASSIGN(CookieMonster);
 };
 
-class CookieMonster::Delegate
+class NET_EXPORT CookieMonster::Delegate
     : public base::RefCountedThreadSafe<CookieMonster::Delegate> {
  public:
   // The publicly relevant reasons a cookie might be changed.
   enum ChangeCause {
     // The cookie was changed directly by a consumer's action.
     CHANGE_COOKIE_EXPLICIT,
     // The cookie was automatically removed due to an insert operation that
     // overwrote it.
     CHANGE_COOKIE_OVERWRITE,
     // The cookie was automatically removed as it expired.
@@ skipping 60 matching lines @@
   virtual ~PersistentCookieStore() {}
 
  private:
   friend class base::RefCountedThreadSafe<PersistentCookieStore>;
   DISALLOW_COPY_AND_ASSIGN(PersistentCookieStore);
 };
 
 }  // namespace net
 
 #endif  // NET_COOKIES_COOKIE_MONSTER_H_