Remove search::GetSearchTerms since it always returns empty string

chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc

Index: chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc
diff --git a/chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc b/chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc
index 391fab43ff4d94c4b4a282fecf15296e96631348..dc2889dcea1bd15cd3ecfe3d8f76171085331487 100644
--- a/chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc
+++ b/chrome/browser/ui/toolbar/chrome_toolbar_model_delegate.cc
@@ -80,41 +80,6 @@ ChromeToolbarModelDelegate::GetSecurityLevel() const {
   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;