Add reprioritization to socket pools.

net/socket/socket_test_util.cc

Index: net/socket/socket_test_util.cc
diff --git a/net/socket/socket_test_util.cc b/net/socket/socket_test_util.cc
index ef21477adc6b9e7f54b0cdc032f16d34ef74427c..b84e673f4a5d0d7e82628515d0d1af4a3bb0b587 100644
--- a/net/socket/socket_test_util.cc
+++ b/net/socket/socket_test_util.cc
@@ -1650,6 +1650,12 @@ int MockTransportClientSocketPool::RequestSocket(
   return job->Connect();
 }
 
+void MockTransportClientSocketPool::SetPriority(const std::string& group_name,
+                                                ClientSocketHandle* handle,
+                                                RequestPriority priority) {
+  // TODO: Implement.
+}
+
 void MockTransportClientSocketPool::CancelRequest(const std::string& group_name,
                                                   ClientSocketHandle* handle) {
   for (std::unique_ptr<MockConnectJob>& it : job_list_) {
@@ -1694,6 +1700,12 @@ int MockSOCKSClientSocketPool::RequestSocket(const std::string& group_name,
                                         net_log);
 }
 
+void MockSOCKSClientSocketPool::SetPriority(const std::string& group_name,
+                                            ClientSocketHandle* handle,
+                                            RequestPriority priority) {
+  transport_pool_->SetPriority(group_name, handle, priority);
+}
+
 void MockSOCKSClientSocketPool::CancelRequest(
     const std::string& group_name,
     ClientSocketHandle* handle) {