[WIP] Upgrade-insecure-request: upgrade insecurely-redirected requests.

content/browser/net/url_request_insecure_interceptor.h

+// Copyright 2016 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.
+
+#ifndef CONTENT_BROWSER_NET_URL_REQUEST_INSECURE_INTERCEPTOR_H_
+#define CONTENT_BROWSER_NET_URL_REQUEST_INSECURE_INTERCEPTOR_H_
+
+#include "net/url_request/url_request_interceptor.h"
+
+namespace content {
+
+// An URLRequestInterceptor that upgrade insecure request during redirections.
+class URLRequestInsecureInterceptor : public net::URLRequestInterceptor {
+ public:
+  URLRequestInsecureInterceptor();
+  ~URLRequestInsecureInterceptor() override;
+
+ protected:
+  // Override from net::URLRequestInterceptor:
+  net::URLRequestJob* MaybeInterceptRequest(
+      net::URLRequest* request,
+      net::NetworkDelegate* network_delegate) const override;
+  net::URLRequestJob* MaybeInterceptResponse(
+      net::URLRequest* request,
+      net::NetworkDelegate* network_delegate) const override;
+  net::URLRequestJob* MaybeInterceptRedirect(
+      net::URLRequest* request,
+      net::NetworkDelegate* network_delegate,
+      const GURL& location) const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(URLRequestInsecureInterceptor);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_NET_URL_REQUEST_INTERCEPTOR_H_