Provide child/frame IDs for WebSocket handshake request

content/browser/websockets/websocket_handshake_request_info_impl.cc

+// 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.
+
+#include "content/browser/websockets/websocket_handshake_request_info_impl.h"
+
+#include "net/url_request/url_request.h"
+
+namespace content {
+
+namespace {
+
+constexpr int g_tag = 0;
+
+}  // namesapce
+
+WebSocketHandshakeRequestInfoImpl::WebSocketHandshakeRequestInfoImpl(
+    int child_id,
+    int render_frame_id)
+    : child_id_(child_id), render_frame_id_(render_frame_id) {}
+
+WebSocketHandshakeRequestInfoImpl::~WebSocketHandshakeRequestInfoImpl() {}
+
+void WebSocketHandshakeRequestInfoImpl::CreateInfoAndAssociateWithRequest(
+    int child_id,
+    int render_frame_id,
+    net::URLRequest* request) {
+  request->SetUserData(
+      &g_tag, new WebSocketHandshakeRequestInfoImpl(child_id, render_frame_id));
+}
+
+int WebSocketHandshakeRequestInfoImpl::GetChildId() const {
+  return child_id_;
+}
+
+int WebSocketHandshakeRequestInfoImpl::GetRenderFrameId() const {
+  return render_frame_id_;
+}
+
+const WebSocketHandshakeRequestInfo* WebSocketHandshakeRequestInfo::ForRequest(
+    const net::URLRequest* request) {
+  return static_cast<WebSocketHandshakeRequestInfoImpl*>(
+      request->GetUserData(&g_tag));
+}
+
+}  // namespace content