Android: move peerconnection out of power observer.

content/renderer/media/peer_connection_tracker.cc

 // Copyright (c) 2013 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/renderer/media/peer_connection_tracker.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 358 matching lines @@
 
 RenderThread* PeerConnectionTracker::SendTarget() {
   if (send_target_for_test_) {
     return send_target_for_test_;
   }
   return RenderThreadImpl::current();
 }
 
 void PeerConnectionTracker::OnSuspend() {
   DCHECK(main_thread_.CalledOnValidThread());
+  // On Android 'Suspend' means more of the activity state. So it's better to
+  // keep the webrtc call session when user is doing something else or screen
+  // is off.
+#if !defined(OS_ANDROID)
   for (PeerConnectionIdMap::iterator it = peer_connection_id_map_.begin();
        it != peer_connection_id_map_.end(); ++it) {
     it->first->CloseClientPeerConnection();
   }
+#endif
 }
 
 void PeerConnectionTracker::OnStartEventLog(int peer_connection_id,
                                             IPC::PlatformFileForTransit file) {
   DCHECK(main_thread_.CalledOnValidThread());
   for (auto& it : peer_connection_id_map_) {
     if (it.second == peer_connection_id) {
 #if defined(OS_ANDROID)
       // A lower maximum filesize is used on Android because storage space is
       // more scarce on mobile. This upper limit applies to each peerconnection
@@ skipping 345 matching lines @@
   DCHECK(main_thread_.CalledOnValidThread());
   SendTarget()->Send(new PeerConnectionTrackerHost_UpdatePeerConnection(
       local_id, std::string(callback_type), value));
 }
 
 void PeerConnectionTracker::OverrideSendTargetForTesting(RenderThread* target) {
   send_target_for_test_ = target;
 }
 
 }  // namespace content