ipc: don't treat replies with the unblock flag set as regular messages

ipc/ipc_sync_channel.cc

Index: ipc/ipc_sync_channel.cc
diff --git a/ipc/ipc_sync_channel.cc b/ipc/ipc_sync_channel.cc
index 2763ebd3220134dd0f9a13de5deede583281053c..b9dc2c5582f9d2a0a3529a327729f8466d672fd5 100644
--- a/ipc/ipc_sync_channel.cc
+++ b/ipc/ipc_sync_channel.cc
@@ -323,13 +323,13 @@ bool SyncChannel::SyncContext::OnMessageReceived(const Message& msg) {
   if (TryToUnblockListener(&msg))
     return true;
 
-  if (msg.should_unblock()) {
-    received_sync_msgs_->QueueMessage(msg, this);
+  if (msg.is_reply()) {
+    received_sync_msgs_->QueueReply(msg, this);
     return true;
   }
 
-  if (msg.is_reply()) {
-    received_sync_msgs_->QueueReply(msg, this);
+  if (msg.should_unblock()) {
+    received_sync_msgs_->QueueMessage(msg, this);
     return true;
   }