Update ICE role on all ports, not just ones used for new connections.

webrtc/p2p/base/fakeportallocator.h

Index: webrtc/p2p/base/fakeportallocator.h
diff --git a/webrtc/p2p/base/fakeportallocator.h b/webrtc/p2p/base/fakeportallocator.h
index 58e1d5fac67d2e674a37055c3d6b7949b3f0ce97..0bb9c6e66cc3b695b6495d2541a32566e4503569 100644
--- a/webrtc/p2p/base/fakeportallocator.h
+++ b/webrtc/p2p/base/fakeportallocator.h
@@ -132,6 +132,8 @@ class FakePortAllocatorSession : public PortAllocatorSession {
       port_.reset(TestUDPPort::Create(worker_thread_, factory_, &network,
                                       network.GetBestIP(), 0, 0, username(),
                                       password(), std::string(), false));
+      port_->SignalDestroyed.connect(
+          this, &FakePortAllocatorSession::OnPortDestroyed);
       AddPort(port_.get());
     }
     ++port_config_count_;
@@ -188,6 +190,10 @@ class FakePortAllocatorSession : public PortAllocatorSession {
     allocation_done_ = true;
     SignalCandidatesAllocationDone(this);
   }
+  void OnPortDestroyed(cricket::PortInterface* port) {
+    // Don't want to double-delete port if it deletes itself.
+    port_.release();
+  }
 
   rtc::Thread* worker_thread_;
   rtc::PacketSocketFactory* factory_;