Move instant support to SearchTabHelper.

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 <iterator>
 
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 1227 matching lines @@
   } else if (IsContentsFrom(ntp(), contents)) {
     ntp_->SetDisplayInstantResults(instant_enabled_);
     ntp_->SetOmniboxBounds(omnibox_bounds_);
     ntp_->InitializeFonts();
   } else {
     NOTREACHED();
   }
   UpdateMostVisitedItems();
 }
 
+void InstantController::InstantSupportChanged(
+    const content::WebContents* contents,
+    InstantSupportState instant_support) {
+  if (instant_support == INSTANT_SUPPORT_UNKNOWN)
+    return;
+
+  bool supports_instant = instant_support == INSTANT_SUPPORT_YES;
+  if (!instant_tab_ && supports_instant)
+    ResetInstantTab();
+
+  InstantSupportDetermined(contents, supports_instant);
+}
+
 void InstantController::InstantSupportDetermined(
     const content::WebContents* contents,
     bool supports_instant) {
   if (IsContentsFrom(instant_tab(), contents)) {
     if (!supports_instant)
       base::MessageLoop::current()->DeleteSoon(FROM_HERE,
                                                instant_tab_.release());
 
     content::NotificationService::current()->Notify(
         chrome::NOTIFICATION_INSTANT_TAB_SUPPORT_DETERMINED,
@@ skipping 606 matching lines @@
   result->transition = match.transition;
   result->relevance = match.relevance;
   result->autocomplete_match_index = autocomplete_match_index;
 
   DVLOG(1) << "    " << result->relevance << " "
       << UTF8ToUTF16(AutocompleteMatchType::ToString(result->type)) << " "
       << result->provider << " " << result->destination_url << " '"
       << result->description << "' '" << result->search_query << "' "
       << result->transition <<  " " << result->autocomplete_match_index;
 }