Fix FakePortAllocator to keep reference to TransportContext.

remoting/test/fake_port_allocator.cc

Index: remoting/test/fake_port_allocator.cc
diff --git a/remoting/test/fake_port_allocator.cc b/remoting/test/fake_port_allocator.cc
index 65d904714e40483a38d715e477706fc436a1e08d..49db5530e0e66108bdfc4f361b6fe14011e1486a 100644
--- a/remoting/test/fake_port_allocator.cc
+++ b/remoting/test/fake_port_allocator.cc
@@ -46,8 +46,10 @@ FakePortAllocatorSession::~FakePortAllocatorSession() {}
 
 FakePortAllocator::FakePortAllocator(
     rtc::NetworkManager* network_manager,
-    rtc::PacketSocketFactory* socket_factory)
-    : BasicPortAllocator(network_manager, socket_factory) {
+    rtc::PacketSocketFactory* socket_factory,
+    scoped_refptr<protocol::TransportContext> transport_context)
+    : BasicPortAllocator(network_manager, socket_factory),
+      transport_context_(transport_context) {
   set_flags(cricket::PORTALLOCATOR_DISABLE_TCP |
             cricket::PORTALLOCATOR_ENABLE_SHARED_UFRAG |
             cricket::PORTALLOCATOR_ENABLE_IPV6 |
@@ -78,8 +80,8 @@ FakePortAllocatorFactory::~FakePortAllocatorFactory() {}
 scoped_ptr<cricket::PortAllocator>
 FakePortAllocatorFactory::CreatePortAllocator(
     scoped_refptr<protocol::TransportContext> transport_context) {
-  return make_scoped_ptr(
-      new FakePortAllocator(network_manager_.get(), socket_factory_.get()));
+  return make_scoped_ptr(new FakePortAllocator(
+      network_manager_.get(), socket_factory_.get(), transport_context));
 }
 
 }  // namespace remoting