Update the Bling omnibox to be aware of HTTP_SHOW_WARNING and use ShouldAlwaysShowIcon().

ios/chrome/browser/ui/omnibox/location_bar_view_ios.mm

 // Copyright (c) 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 <UIKit/UIKit.h>
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "components/omnibox/browser/omnibox_edit_model.h"
+#include "components/security_state/core/security_state_ui.h"
 #include "components/strings/grit/components_strings.h"
 #include "components/toolbar/toolbar_model.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
 #include "ios/chrome/browser/experimental_flags.h"
 #include "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
 #include "ios/chrome/browser/ui/commands/ios_command_ids.h"
 #include "ios/chrome/browser/ui/omnibox/location_bar_view_ios.h"
 #import "ios/chrome/browser/ui/omnibox/omnibox_text_field_ios.h"
 #include "ios/chrome/browser/ui/omnibox/omnibox_view_ios.h"
@@ skipping 140 matching lines @@
 void LocationBarViewIOS::OnChanged() {
   const bool page_is_offline = IsCurrentPageOffline(GetWebState());
   const int resource_id = edit_view_->GetIcon(page_is_offline);
   [field_ setPlaceholderImage:resource_id];
 
   // TODO(rohitrao): Can we get focus information from somewhere other than the
   // model?
   if (!IsIPadIdiom() && !edit_view_->model()->has_focus()) {
     ToolbarModel* toolbarModel = [delegate_ toolbarModel];
     if (toolbarModel) {
-      bool page_is_secure =
-          toolbarModel->GetSecurityLevel(false) != security_state::NONE;
+      bool show_icon_for_state = security_state::ShouldAlwaysShowIcon(
+          toolbarModel->GetSecurityLevel(false));
       bool page_has_downgraded_HTTPS =
           experimental_flags::IsPageIconForDowngradedHTTPSEnabled() &&
           DoesCurrentPageHaveCertInfo(GetWebState());
-      if (page_is_secure || page_has_downgraded_HTTPS || page_is_offline) {
+      if (show_icon_for_state || page_has_downgraded_HTTPS || page_is_offline) {
         [field_ showPlaceholderImage];
         is_showing_placeholder_while_collapsed_ = true;
       } else {
         [field_ hidePlaceholderImage];
         is_showing_placeholder_while_collapsed_ = false;
       }
     }
   }
   UpdateRightDecorations();
   [delegate_ locationBarChanged];
@@ skipping 131 matching lines @@
     if (IsIPadIdiom())
       [field_ setRightView:nil];
   } else if ([field_ displayedText].empty() &&
              ![field_ isShowingQueryRefinementChip]) {
     [field_ setRightView:nil];
   } else {
     [field_ setRightView:clear_text_button_];
     [clear_text_button_ setAlpha:1];
   }
 }