Remove InstantTab::Delegate::InstantSupportDetermined

chrome/browser/ui/search/instant_controller.cc

 // Copyright 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.
 
 #include "chrome/browser/ui/search/instant_controller.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/location.h"
@@ skipping 55 matching lines @@
     InstantSupportState instant_support) {
   // Handle INSTANT_SUPPORT_YES here because InstantTab is not hooked up to the
   // active tab. Search model changed listener in InstantTab will handle other
   // cases.
   if (instant_support != INSTANT_SUPPORT_YES)
     return;
 
   ResetInstantTab();
 }
 
-void InstantController::InstantSupportDetermined(
-    const content::WebContents* contents,
-    bool supports_instant) {
-  DCHECK(IsContentsFrom(instant_tab_.get(), contents));
-
-  if (!supports_instant) {
-    base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE,
-                                                    instant_tab_.release());
-  }
-}
-
 void InstantController::InstantTabAboutToNavigateMainFrame(
     const content::WebContents* contents,
     const GURL& url) {
   DCHECK(IsContentsFrom(instant_tab_.get(), contents));
 
   // The Instant tab navigated.  Send it the data it needs to display
   // properly.
   UpdateInfoForInstantTab();
 }
 
 void InstantController::ResetInstantTab() {
-  if (!search_mode_.is_origin_default()) {
+  if (search_mode_.is_origin_ntp()) {
     content::WebContents* active_tab = browser_->GetActiveWebContents();
     if (!instant_tab_ || active_tab != instant_tab_->web_contents()) {
       instant_tab_.reset(new InstantTab(this, active_tab));
       instant_tab_->Init();
       UpdateInfoForInstantTab();
     }
   } else {
     instant_tab_.reset();
   }
 }
 
 void InstantController::UpdateInfoForInstantTab() {
   if (instant_tab_) {
     // Update theme details.
     InstantService* instant_service = GetInstantService();
     if (instant_service) {
       instant_service->UpdateThemeInfo();
       instant_service->UpdateMostVisitedItemsInfo();
     }
   }
 }
 
 InstantService* InstantController::GetInstantService() const {
   return InstantServiceFactory::GetForProfile(browser_->profile());
 }