[Search] No longer reverting omnibox text on instant search

chrome/browser/instant/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/instant/instant_controller.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 411 matching lines @@
 
 content::WebContents* InstantController::GetPreviewContents() const {
   return loader_ ? loader_->contents() : NULL;
 }
 
 bool InstantController::IsPreviewingSearchResults() const {
   return model_.mode().is_search_suggestions() && last_match_was_search_ &&
          IsFullHeight(model_);
 }
 
+bool InstantController::IsInstantExtendedSearch() const {
+  return extended_enabled_  && instant_enabled_ && last_match_was_search_;
+}
+
 bool InstantController::CommitIfPossible(InstantCommitType type) {
   if (!extended_enabled_ && !instant_enabled_)
     return false;
 
   DVLOG(1) << "CommitIfPossible: type=" << type << " last_omnibox_text_='"
            << last_omnibox_text_ << "' last_match_was_search_="
            << last_match_was_search_ << " instant_tab_=" << instant_tab_;
 
   // If we are on an already committed search results page, send a submit event
   // to the page, but otherwise, nothing else to do.
@@ skipping 646 matching lines @@
   }
 
   std::map<std::string, int>::const_iterator iter =
       blacklisted_urls_.find(*instant_url);
   if (iter != blacklisted_urls_.end() &&
       iter->second > kMaxInstantSupportFailures)
     return false;
 
   return true;
 }