Update SupportsUserData uses with unique_ptr.

chrome/browser/infobars/infobar_service.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.
 
 #ifndef CHROME_BROWSER_INFOBARS_INFOBAR_SERVICE_H_
 #define CHROME_BROWSER_INFOBARS_INFOBAR_SERVICE_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 12 matching lines @@
 namespace infobars {
 class InfoBar;
 }
 
 // Associates a Tab to a InfoBarManager and manages its lifetime.
 // It manages the infobar notifications and responds to navigation events.
 class InfoBarService : public infobars::InfoBarManager,
                        public content::WebContentsObserver,
                        public content::WebContentsUserData<InfoBarService> {
  public:
+  ~InfoBarService() override;
+
   static infobars::InfoBarDelegate::NavigationDetails
       NavigationDetailsFromLoadCommittedDetails(
           const content::LoadCommittedDetails& details);
 
   // This function must only be called on infobars that are owned by an
   // InfoBarService instance (or not owned at all, in which case this returns
   // NULL).
   static content::WebContents* WebContentsFromInfoBar(
       infobars::InfoBar* infobar);
 
   // Makes it so the next reload is ignored. That is, if the next commit is a
   // reload then it is treated as if nothing happened and no infobars are
   // attempted to be closed.
   // This is useful for non-user triggered reloads that should not dismiss
   // infobars. For example, instant may trigger a reload when the google URL
   // changes.
   void set_ignore_next_reload() { ignore_next_reload_ = true; }
 
   // InfoBarManager:
   // TODO(sdefresne): Change clients to invoke this on infobars::InfoBarManager
   // and turn the method override private.
   std::unique_ptr<infobars::InfoBar> CreateConfirmInfoBar(
       std::unique_ptr<ConfirmInfoBarDelegate> delegate) override;
   void OpenURL(const GURL& url, WindowOpenDisposition disposition) override;
 
  private:
   friend class content::WebContentsUserData<InfoBarService>;
 
   explicit InfoBarService(content::WebContents* web_contents);
-  ~InfoBarService() override;
 
   // InfoBarManager:
   int GetActiveEntryID() override;
   // TODO(droger): Remove these functions once infobar notifications are
   // removed. See http://crbug.com/354380
   void NotifyInfoBarAdded(infobars::InfoBar* infobar) override;
   void NotifyInfoBarRemoved(infobars::InfoBar* infobar, bool animate) override;
 
   // content::WebContentsObserver:
   void RenderProcessGone(base::TerminationStatus status) override;
   void DidStartNavigation(
       content::NavigationHandle* navigation_handle) override;
   void NavigationEntryCommitted(
       const content::LoadCommittedDetails& load_details) override;
   void WebContentsDestroyed() override;
 
   // See description in set_ignore_next_reload().
   bool ignore_next_reload_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarService);
 };
 
 #endif  // CHROME_BROWSER_INFOBARS_INFOBAR_SERVICE_H_