DevTools: Remove ShowSecurityPanel as it is no longer used

chrome/browser/devtools/devtools_toggle_action.cc

 // Copyright 2013 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/devtools/devtools_toggle_action.h"
 
 DevToolsToggleAction::RevealParams::RevealParams(const base::string16& url,
                                                  size_t line_number,
                                                  size_t column_number)
     : url(url), line_number(line_number), column_number(column_number) {
@@ skipping 27 matching lines @@
 DevToolsToggleAction DevToolsToggleAction::Show() {
   return DevToolsToggleAction(kShow);
 }
 
 // static
 DevToolsToggleAction DevToolsToggleAction::ShowConsole() {
   return DevToolsToggleAction(kShowConsole);
 }
 
 // static
-DevToolsToggleAction DevToolsToggleAction::ShowSecurityPanel() {
-  return DevToolsToggleAction(kShowSecurityPanel);
-}
-
-// static
 DevToolsToggleAction DevToolsToggleAction::Inspect() {
   return DevToolsToggleAction(kInspect);
 }
 
 // static
 DevToolsToggleAction DevToolsToggleAction::Toggle() {
   return DevToolsToggleAction(kToggle);
 }
 
 // static
 DevToolsToggleAction DevToolsToggleAction::Reveal(
     const base::string16& url,
     size_t line_number,
     size_t column_number) {
   return DevToolsToggleAction(
       new RevealParams(url, line_number, column_number));
 }
 
 // static
 DevToolsToggleAction DevToolsToggleAction::NoOp() {
   return DevToolsToggleAction(kNoOp);
 }