android: Remove CleanupReference from CookiesFetcher

chrome/browser/android/cookies/cookies_fetcher.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_ANDROID_COOKIES_COOKIES_FETCHER_H_
 #define CHROME_BROWSER_ANDROID_COOKIES_COOKIES_FETCHER_H_
 
 #include <stdint.h>
 
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/url_request/url_request_context_getter.h"
 
 class Profile;
 
 // This class can be used to retrieve an array of cookies from the cookie jar
 // as well as insert an array of cookies into it. This class is the underlying
 // glue that interacts with CookiesFetch.java and its lifetime is governed by
 // the Java counter part.
 class CookiesFetcher {
  public:
   // Constructs a fetcher that can interact with the cookie jar in the
   // specified profile.
   explicit CookiesFetcher(JNIEnv* env, jobject obj, Profile* profile);
 
   ~CookiesFetcher();
 
-  // Called by the Java object when it is getting GC'd.
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
-
-  // Callback used after the cookie jar populate the cookie list for us.
-  void OnCookiesFetchFinished(const net::CookieList& cookies);
-
   // Fetches all cookies from the cookie jar.
   void PersistCookies(JNIEnv* env,
                       const base::android::JavaParamRef<jobject>& obj);
 
  private:
   void PersistCookiesInternal(net::URLRequestContextGetter* getter);
 
+  // Callback used after the cookie jar populate the cookie list for us.
+  void OnCookiesFetchFinished(const net::CookieList& cookies);
+
   base::android::ScopedJavaGlobalRef<jobject> jobject_;
 
   DISALLOW_COPY_AND_ASSIGN(CookiesFetcher);
 };
 
 // Registers the CookiesFetcher native method.
 bool RegisterCookiesFetcher(JNIEnv* env);
 
 #endif // CHROME_BROWSER_ANDROID_COOKIES_COOKIES_FETCHER_H_