Remove search::GetSearchTerms since it always returns empty string

chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc

 // Copyright 2016 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/toolbar/chrome_toolbar_model_delegate.h"
 
 #include "base/logging.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
@@ skipping 62 matching lines @@
 ChromeToolbarModelDelegate::GetSecurityLevel() const {
   content::WebContents* web_contents = GetActiveWebContents();
   // If there is no active WebContents (which can happen during toolbar
   // initialization), assume no security style.
   if (!web_contents)
     return security_state::SecurityStateModel::NONE;
   auto* client = ChromeSecurityStateModelClient::FromWebContents(web_contents);
   return client->GetSecurityInfo().security_level;
 }
 
-base::string16 ChromeToolbarModelDelegate::GetSearchTerms(
-    security_state::SecurityStateModel::SecurityLevel security_level) const {
-  content::WebContents* web_contents = GetActiveWebContents();
-  base::string16 search_terms(search::GetSearchTerms(web_contents));
-  if (search_terms.empty()) {
-    // We mainly do this to enforce the subsequent DCHECK.
-    return base::string16();
-  }
-
-  // If the page is still loading and the security style is unknown, consider
-  // the page secure.  Without this, after the user hit enter on some search
-  // terms, the omnibox would change to displaying the loading URL before
-  // changing back to the search terms once they could be extracted, thus
-  // causing annoying flicker.
-  DCHECK(web_contents);
-  content::NavigationController& nav_controller = web_contents->GetController();
-  content::NavigationEntry* entry = nav_controller.GetVisibleEntry();
-  if ((entry != nav_controller.GetLastCommittedEntry()) &&
-      (entry->GetSSL().security_style == content::SECURITY_STYLE_UNKNOWN))
-    return search_terms;
-
-  // If the URL is using a Google base URL specified via the command line, we
-  // bypass the security check below.
-  if (entry &&
-      google_util::StartsWithCommandLineGoogleBaseURL(entry->GetVirtualURL()))
-    return search_terms;
-
-  // Otherwise, extract search terms for HTTPS pages that do not have a security
-  // error.
-  bool extract_search_terms =
-      (security_level != security_state::SecurityStateModel::NONE) &&
-      (security_level != security_state::SecurityStateModel::SECURITY_ERROR);
-  return extract_search_terms ? search_terms : base::string16();
-}
-
 scoped_refptr<net::X509Certificate> ChromeToolbarModelDelegate::GetCertificate()
     const {
   scoped_refptr<net::X509Certificate> cert;
   content::NavigationEntry* entry = GetNavigationEntry();
   if (entry) {
     content::CertStore::GetInstance()->RetrieveCert(entry->GetSSL().cert_id,
                                                     &cert);
   }
   return cert;
 }
@@ skipping 12 matching lines @@
   content::NavigationController* controller = GetNavigationController();
   return controller ? controller->GetVisibleEntry() : nullptr;
 }
 
 Profile* ChromeToolbarModelDelegate::GetProfile() const {
   content::NavigationController* controller = GetNavigationController();
   return controller
              ? Profile::FromBrowserContext(controller->GetBrowserContext())
              : nullptr;
 }