PlzNavigate: Move navigation-level mixed content checks to the browser.

chrome/browser/infobars/insecure_content_infobar_delegate.cc

 // Copyright (c) 2011 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/infobars/insecure_content_infobar_delegate.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/metrics/histogram.h"
+#include "chrome/browser/content_settings/mixed_content_settings.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/content_settings/content/common/content_settings_messages.h"
 #include "components/google/core/browser/google_util.h"
 #include "components/infobars/core/infobar.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/components_strings.h"
@@ skipping 66 matching lines @@
 }
 
 // Cancel button is labelled "load anyways".  It triggers Cancel(), but really
 // means become insecure, so do the work of reloading the page.
 bool InsecureContentInfoBarDelegate::Cancel() {
   UMA_HISTOGRAM_ENUMERATION("InsecureContentInfoBarDelegateV2",
                             DISPLAY_USER_OVERRIDE, NUM_EVENTS);
 
   content::WebContents* web_contents =
       InfoBarService::WebContentsFromInfoBar(infobar());
+  MixedContentSettings* mixed_content_settings =
+      MixedContentSettings::FromWebContents(web_contents);
+  mixed_content_settings->AllowDisplayingOfInsecureContent();

[carlosk, 2016/07/18 14:37:13]

Does it makes more sense to move this code below that notifies the renderer into
MixedContentSettings::AllowDisplayingOfInsecureContent?

   web_contents->SendToAllFrames(
       new ChromeViewMsg_SetAllowDisplayingInsecureContent(
           MSG_ROUTING_NONE, true));
   web_contents->GetMainFrame()->Send(new ChromeViewMsg_ReloadFrame(
       web_contents->GetMainFrame()->GetRoutingID()));
   return true;
 }
 
 base::string16 InsecureContentInfoBarDelegate::GetLinkText() const {
   return l10n_util::GetStringUTF16(IDS_LEARN_MORE);
 }
 
 GURL InsecureContentInfoBarDelegate::GetLinkURL() const {
   return GURL("https://support.google.com/chrome/answer/1342714");
 }