Deprecate the StickyDefaultBrowserPrompt experiment

chrome/browser/ui/startup/default_browser_infobar_delegate.h

 // Copyright 2016 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_UI_STARTUP_DEFAULT_BROWSER_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_UI_STARTUP_DEFAULT_BROWSER_INFOBAR_DELEGATE_H_
 
-#include "base/feature_list.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/shell_integration.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 
 class Profile;
 
 namespace chrome {
 
-// The StickyDefaultBrowserPrompt experiment delays the dismissal of the
-// DefaultBrowserPrompt to after a change in the default browser setting has
-// been detected.
-constexpr base::Feature kStickyDefaultBrowserPrompt{
-    "StickyDefaultBrowserPrompt", base::FEATURE_DISABLED_BY_DEFAULT};
-
-// Returns true if the StickyDefaultBrowserPrompt experiment is enabled.
-bool IsStickyDefaultBrowserPromptEnabled();
-
 // The delegate for the infobar shown when Chrome is not the default browser.
 // Ownership of the delegate is given to the infobar itself, the lifetime of
 // which is bound to the containing WebContents.
 class DefaultBrowserInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
   // Creates a default browser infobar and delegate and adds the infobar to
   // |infobar_service|.
   static void Create(InfoBarService* infobar_service, Profile* profile);
 
  protected:
@@ skipping 22 matching lines @@
   infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   const gfx::VectorIcon& GetVectorIcon() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
   void InfoBarDismissed() override;
   base::string16 GetMessageText() const override;
   int GetButtons() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool OKButtonTriggersUACPrompt() const override;
   bool Accept() override;
 
-  // Declared virtual so tests can override.
-  virtual scoped_refptr<shell_integration::DefaultBrowserWorker>
-  CreateDefaultBrowserWorker(
-      const shell_integration::DefaultWebClientWorkerCallback& callback);
-
-  // Removes the infobar when the worker is finished setting the default
-  // browser. Only used if the StickyDefaultBrowserPrompt experiment is
-  // enabled.
-  void OnSetAsDefaultFinished(shell_integration::DefaultWebClientState state);
-
   // The WebContents's corresponding profile.
   Profile* profile_;
 
-  scoped_refptr<base::SingleThreadTaskRunner> thread_task_runner_;
-
   // Whether the info bar should be dismissed on the next navigation.
   bool should_expire_;
 
   // Indicates if the user interacted with the infobar.
   bool action_taken_;
 
   // Used to delay the expiration of the info-bar.
   base::WeakPtrFactory<DefaultBrowserInfoBarDelegate> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultBrowserInfoBarDelegate);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_STARTUP_DEFAULT_BROWSER_INFOBAR_DELEGATE_H_