Remove DetermineIfPageSupportsInstant and all its plumbing

chrome/renderer/searchbox/searchbox.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/renderer/searchbox/searchbox.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <string>
@@ skipping 339 matching lines @@
 void SearchBox::SetPageSequenceNumber(int page_seq_no) {
   page_seq_no_ = page_seq_no;
 }
 
 void SearchBox::ChromeIdentityCheckResult(const base::string16& identity,
                                           bool identity_match) {
   extensions_v8::SearchBoxExtension::DispatchChromeIdentityCheckResult(
       render_frame()->GetWebFrame(), identity, identity_match);
 }
 
-void SearchBox::DetermineIfPageSupportsInstant() {
-  bool result = extensions_v8::SearchBoxExtension::PageSupportsInstant(
-      render_frame()->GetWebFrame());
-  DVLOG(1) << render_frame() << " PageSupportsInstant: " << result;
-  instant_service_->InstantSupportDetermined(page_seq_no_, result);
-}
-
 void SearchBox::FocusChanged(OmniboxFocusState new_focus_state,
                              OmniboxFocusChangeReason reason) {
   bool key_capture_enabled = new_focus_state == OMNIBOX_FOCUS_INVISIBLE;
   if (key_capture_enabled != is_key_capture_enabled_) {
     // Tell the page if the key capture mode changed unless the focus state
     // changed because of TYPING. This is because in that case, the browser
     // hasn't really stopped capturing key strokes.
     //
     // (More practically, if we don't do this check, the page would receive
     // onkeycapturechange before the corresponding onchange, and the page would
@@ skipping 90 matching lines @@
   embedded_search_request_params_ = EmbeddedSearchRequestParams();
   suggestion_ = InstantSuggestion();
   is_focused_ = false;
   is_key_capture_enabled_ = false;
   theme_info_ = ThemeBackgroundInfo();
 }
 
 void SearchBox::OnDestruct() {
   delete this;
 }