Implement chrome://network-errors for direct access to network error interstitials

content/browser/net/network_error_request_job.cc

+// Copyright 2015 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/browser/net/network_error_request_job.h"
+
+#include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "net/base/escape.h"
+#include "net/base/net_errors.h"
+#include "net/log/net_log_util.h"
+#include "net/url_request/url_request.h"
+#include "url/gurl.h"
+
+namespace content {
+
+NetworkErrorRequestJob::NetworkErrorRequestJob(
+    net::URLRequest* request,
+    net::NetworkDelegate* network_delegate)
+    : net::URLRequestSimpleJob(request, network_delegate),
+      error_code_(net::Error::OK) {
+  std::basic_string<char> error_code_string =
+      request->url().path().substr(1, std::string::npos);
+
+  if (!base::StringToInt(error_code_string, &error_code_))
+    error_code_ = 0;
+}
+
+int NetworkErrorRequestJob::GetData(
+    std::string* mime_type,
+    std::string* charset,
+    std::string* data,
+    const net::CompletionCallback& callback) const {
+  mime_type->assign("text/html");
+  charset->assign("UTF8");
+
+  if (error_code_ == 0 || error_code_ == net::Error::ERR_IO_PENDING)
+    return net::OK;
+
+  return error_code_;
+}
+
+}  // namespace content