Deprecate the StickyDefaultBrowserPrompt experiment

chrome/browser/ui/startup/default_browser_infobar_delegate.cc

Index: chrome/browser/ui/startup/default_browser_infobar_delegate.cc
diff --git a/chrome/browser/ui/startup/default_browser_infobar_delegate.cc b/chrome/browser/ui/startup/default_browser_infobar_delegate.cc
index bec61e7cdc0e1b434fd6e4c397785704c6edb0fd..0fbdfdee25726c8ceb7ffde4e423e640dead7c28 100644
--- a/chrome/browser/ui/startup/default_browser_infobar_delegate.cc
+++ b/chrome/browser/ui/startup/default_browser_infobar_delegate.cc
@@ -22,16 +22,6 @@
 
 namespace chrome {
 
-bool IsStickyDefaultBrowserPromptEnabled() {
-#if defined(OS_WIN)
-  // The flow to set the default browser is only asynchronous on Windows 10+.
-  return base::win::GetVersion() >= base::win::VERSION_WIN10 &&
-         base::FeatureList::IsEnabled(kStickyDefaultBrowserPrompt);
-#else
-  return false;
-#endif
-}
-
 // static
 void DefaultBrowserInfoBarDelegate::Create(InfoBarService* infobar_service,
                                            Profile* profile) {
@@ -128,34 +118,13 @@ bool DefaultBrowserInfoBarDelegate::Accept() {
                             ACCEPT_INFO_BAR,
                             NUM_INFO_BAR_USER_INTERACTION_TYPES);
 
-  bool close_infobar = true;
-  shell_integration::DefaultWebClientWorkerCallback set_as_default_callback;
-
-  if (IsStickyDefaultBrowserPromptEnabled()) {
-    // When the experiment is enabled, the infobar is only closed when the
-    // DefaultBrowserWorker is finished.
-    set_as_default_callback =
-        base::Bind(&DefaultBrowserInfoBarDelegate::OnSetAsDefaultFinished,
-                   weak_factory_.GetWeakPtr());
-    close_infobar = false;
-  }
-
   // The worker pointer is reference counted. While it is running, the
   // message loops of the FILE and UI thread will hold references to it
   // and it will be automatically freed once all its tasks have finished.
-  CreateDefaultBrowserWorker(set_as_default_callback)->StartSetAsDefault();
-  return close_infobar;
-}
-
-scoped_refptr<shell_integration::DefaultBrowserWorker>
-DefaultBrowserInfoBarDelegate::CreateDefaultBrowserWorker(
-    const shell_integration::DefaultWebClientWorkerCallback& callback) {
-  return new shell_integration::DefaultBrowserWorker(callback);
-}
-
-void DefaultBrowserInfoBarDelegate::OnSetAsDefaultFinished(
-    shell_integration::DefaultWebClientState state) {
-  infobar()->owner()->RemoveInfoBar(infobar());
+  make_scoped_refptr(new shell_integration::DefaultBrowserWorker(
+                         shell_integration::DefaultWebClientWorkerCallback()))
+      ->StartSetAsDefault();
+  return true;
 }
 
 }  // namespace chrome