Handful of related instant changes:

chrome/browser/ui/views/instant_confirm_view.cc

Index: chrome/browser/ui/views/instant_confirm_view.cc
diff --git a/chrome/browser/ui/views/instant_confirm_view.cc b/chrome/browser/ui/views/instant_confirm_view.cc
index 4a714b2fe15f20b388cea909496592a8e0a29d72..f68647b393d168d8cfacb1071e8b94775071a1a0 100644
--- a/chrome/browser/ui/views/instant_confirm_view.cc
+++ b/chrome/browser/ui/views/instant_confirm_view.cc
@@ -8,6 +8,7 @@
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/instant/instant_confirm_dialog.h"
+#include "chrome/browser/instant/instant_controller.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profile.h"
 #include "chrome/common/pref_names.h"
@@ -48,11 +49,7 @@ bool InstantConfirmView::Accept(bool window_closing) {
 }
 
 bool InstantConfirmView::Accept() {
-  PrefService* prefs = profile_->GetPrefs();
-  if (prefs) {
-    prefs->SetBoolean(prefs::kInstantEnabled, true);
-    prefs->SetBoolean(prefs::kInstantConfirmDialogShown, true);
-  }
+  InstantController::Enable(profile_);
   return true;
 }