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

content/shell/browser/layout_test/layout_test_content_browser_client.cc

 // Copyright 2014 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/shell/browser/layout_test/layout_test_content_browser_client.h"
 
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 122 matching lines @@
     StoragePartition* partition,
     const storage::OptionalQuotaSettingsCallback& callback) {
   callback.Run(storage::GetHardCodedSettings(5 * 1024 * 1024));
 }
 
 PlatformNotificationService*
 LayoutTestContentBrowserClient::GetPlatformNotificationService() {
   return layout_test_notification_manager_.get();
 }
 
+bool LayoutTestContentBrowserClient::ShouldAllowRunningInsecureContent(
+    bool allowed_per_settings,
+    const url::Origin& origin,
+    const GURL& resource_url,
+    content::WebContents* web_contents) {
+  const base::DictionaryValue& test_flags =
+      BlinkTestController::Get()
+          ->accumulated_layout_test_runtime_flags_changes();
+  bool allow_running = false;
+  test_flags.GetBoolean("running_insecure_content_allowed", &allow_running);
+
+  return allowed_per_settings || allow_running;
+}
+
 }  // namespace content