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

content/public/browser/web_contents_delegate.cc

 // 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.
 
 #include "content/public/browser/web_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "build/build_config.h"
@@ skipping 260 matching lines @@
 
 void WebContentsDelegate::ShowCertificateViewerInDevTools(
     WebContents* web_contents,
     scoped_refptr<net::X509Certificate> certificate) {
 }
 
 void WebContentsDelegate::RequestAppBannerFromDevTools(
     content::WebContents* web_contents) {
 }
 
+bool WebContentsDelegate::ShouldAllowRunningInsecureContent(
+    WebContents* web_contents,
+    bool allowed_per_prefs,
+    const url::Origin& origin,
+    const GURL& resource_url) {
+  return allowed_per_prefs;
+}
+
 }  // namespace content