components/network_hints/browser/network_hints_message_filter.h

// 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.

#ifndef COMPONENTS_NETWORK_HINTS_BROWSER_NETWORK_HINTS_MESSAGE_FILTER_H_
#define COMPONENTS_NETWORK_HINTS_BROWSER_NETWORK_HINTS_MESSAGE_FILTER_H_

#include "base/macros.h"
#include "content/public/browser/browser_message_filter.h"

namespace network_hints {
struct LookupRequest;

// Simple browser-side handler for DNS prefetch requests.
// Each renderer process requires its own filter.
class NetworkHintsMessageFilter : public content::BrowserMessageFilter {
 public:
  explicit NetworkHintsMessageFilter(int render_process_id);

  // content::BrowserMessageFilter implementation:
  bool OnMessageReceived(const IPC::Message& message) override;
  void OverrideThreadForMessage(const IPC::Message& message,
                                content::BrowserThread::ID* thread) override;

 private:
  ~NetworkHintsMessageFilter() override;

  void OnDnsPrefetch(const LookupRequest& lookup_request);

  int render_process_id_;

  DISALLOW_COPY_AND_ASSIGN(NetworkHintsMessageFilter);
};

}  // namespace network_hints

#endif  // COMPONENTS_NETWORK_HINTS_BROWSER_NETWORK_HINTS_MESSAGE_FILTER_H_