content/browser/renderer_host/media/peer_connection_tracker_host.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_
   7
   8 #include "base/power_monitor/power_observer.h"
   9 #include "content/public/browser/browser_message_filter.h"
  10
  11 struct PeerConnectionInfo;
  12
  13 namespace base {
  14 class ListValue;
  15 }  // namespace base
  16
  17 namespace content {
  18
  19 // This class is the host for PeerConnectionTracker in the browser process
  20 // managed by RenderProcessHostImpl. It receives PeerConnection events from
  21 // PeerConnectionTracker as IPC messages that it forwards to WebRTCInternals.
  22 // It also forwards browser process events to PeerConnectionTracker via IPC.
  23 class PeerConnectionTrackerHost : public BrowserMessageFilter,
  24                                   public base::PowerObserver {
  25  public:
  26   explicit PeerConnectionTrackerHost(int render_process_id);
  27
  28   // content::BrowserMessageFilter override.
  29   bool OnMessageReceived(const IPC::Message& message) override;
  30   void OverrideThreadForMessage(const IPC::Message& message,
  31                                 BrowserThread::ID* thread) override;
  32   void OnChannelConnected(int32 peer_pid) override;
  33   void OnChannelClosing() override;
  34
  35   // base::PowerObserver override.
  36   void OnSuspend() override;
  37
  38  protected:
  39   ~PeerConnectionTrackerHost() override;
  40
  41  private:
  42   // Handlers for peer connection messages coming from the renderer.
  43   void OnAddPeerConnection(const PeerConnectionInfo& info);
  44   void OnRemovePeerConnection(int lid);
  45   void OnUpdatePeerConnection(
  46       int lid, const std::string& type, const std::string& value);
  47   void OnAddStats(int lid, const base::ListValue& value);
  48   void OnGetUserMedia(const std::string& origin,
  49                       bool audio,
  50                       bool video,
  51                       const std::string& audio_constraints,
  52                       const std::string& video_constraints);
  53   void SendOnSuspendOnUIThread();
  54
  55   int render_process_id_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(PeerConnectionTrackerHost);
  58 };
  59
  60 }  // namespace content
  61
  62 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_