Pull SecurityStateModel out into a component

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
@@ skipping 432 matching lines @@
   const bool is_keyword_hint = omnibox_view_->model()->is_keyword_hint();
   ChromeToolbarModel* chrome_toolbar_model =
       static_cast<ChromeToolbarModel*>(GetToolbarModel());
   if (!keyword.empty() && !is_keyword_hint) {
     // Switch from location icon to keyword mode.
     location_icon_decoration_->SetVisible(false);
     selected_keyword_decoration_->SetVisible(true);
     selected_keyword_decoration_->SetKeyword(short_name, is_extension_keyword);
     selected_keyword_decoration_->SetImage(GetKeywordImage(keyword));
   } else if (chrome_toolbar_model->GetSecurityLevel(false) ==
-             SecurityStateModel::EV_SECURE) {
+             security_state::SecurityStateModel::EV_SECURE) {
     // Switch from location icon to show the EV bubble instead.
     location_icon_decoration_->SetVisible(false);
     ev_bubble_decoration_->SetVisible(true);
 
     base::string16 label(GetToolbarModel()->GetEVCertName());
     ev_bubble_decoration_->SetFullLabel(base::SysUTF16ToNSString(label));
   } else if (!keyword.empty() && is_keyword_hint) {
     keyword_hint_decoration_->SetKeyword(short_name,
                                          is_extension_keyword);
     keyword_hint_decoration_->SetVisible(true);
@@ skipping 256 matching lines @@
 
   return zoom_decoration_->UpdateIfNecessary(
       ui_zoom::ZoomController::FromWebContents(web_contents),
       default_zoom_changed);
 }
 
 void LocationBarViewMac::OnDefaultZoomLevelChanged() {
   if (UpdateZoomDecoration(/*default_zoom_changed=*/true))
     OnDecorationsChanged();
 }