Remove stl_util's STLValueDeleter.

chrome/browser/download/notification/download_notification_manager.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_DOWNLOAD_NOTIFICATION_DOWNLOAD_NOTIFICATION_MANAGER_H_
 #define CHROME_BROWSER_DOWNLOAD_NOTIFICATION_DOWNLOAD_NOTIFICATION_MANAGER_H_
 
+#include <memory>
 #include <set>
 
 #include "chrome/browser/download/download_ui_controller.h"
 #include "chrome/browser/download/notification/download_item_notification.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/download_item.h"
 
 class DownloadNotificationManagerForProfile;
 
 class DownloadNotificationManager : public DownloadUIController::Delegate {
  public:
   explicit DownloadNotificationManager(Profile* profile);
   ~DownloadNotificationManager() override;
 
   void OnAllDownloadsRemoving(Profile* profile);
   // DownloadUIController::Delegate:
   void OnNewDownloadReady(content::DownloadItem* item) override;
 
   DownloadNotificationManagerForProfile* GetForProfile(Profile* profile) const;
 
  private:
   friend class test::DownloadItemNotificationTest;
 
   Profile* main_profile_ = nullptr;
-  std::map<Profile*, DownloadNotificationManagerForProfile*>
+  std::map<Profile*, std::unique_ptr<DownloadNotificationManagerForProfile>>
       manager_for_profile_;
-
-  base::STLValueDeleter<
-      std::map<Profile*, DownloadNotificationManagerForProfile*>>
-      items_deleter_;
 };
 
 class DownloadNotificationManagerForProfile
     : public content::DownloadItem::Observer {
  public:
   DownloadNotificationManagerForProfile(
       Profile* profile, DownloadNotificationManager* parent_manager);
   ~DownloadNotificationManagerForProfile() override;
 
   message_center::MessageCenter* message_center() const {
@@ skipping 10 matching lines @@
 
  private:
   friend class test::DownloadItemNotificationTest;
 
   void OverrideMessageCenterForTest(
       message_center::MessageCenter* message_center);
 
   Profile* profile_ = nullptr;
   DownloadNotificationManager* parent_manager_;  // weak
   std::set<content::DownloadItem*> downloading_items_;
-  std::map<content::DownloadItem*, DownloadItemNotification*> items_;
+  std::map<content::DownloadItem*, std::unique_ptr<DownloadItemNotification>>
+      items_;
 
   // Pointer to the message center instance.
   message_center::MessageCenter* message_center_;
-
-  base::STLValueDeleter<
-      std::map<content::DownloadItem*, DownloadItemNotification*>>
-      items_deleter_;
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_NOTIFICATION_DOWNLOAD_NOTIFICATION_MANAGER_H_