WIP: A couple of more ChannelMojo speedup ideas

third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc

Index: third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc
diff --git a/third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc b/third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc
index 52faefa4c6e783aaea5f95afb1290e7779f0b3e6..638e743ead6cec7640af42ac9a8c05a7208182f3 100644
--- a/third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc
+++ b/third_party/mojo/src/mojo/edk/system/endpoint_relayer.cc
@@ -30,8 +30,10 @@ void EndpointRelayer::Init(ChannelEndpoint* endpoint0,
   endpoints_[1] = endpoint1;
 }
 
-bool EndpointRelayer::OnReadMessage(unsigned port, MessageInTransit* message) {
-  DCHECK(message);
+bool EndpointRelayer::OnReadMessage(
+    unsigned port,
+    MessageInTransit::ReadContext& reading_message) {
+  DCHECK(!reading_message.passed());
 
   base::AutoLock locker(lock_);
 
@@ -42,7 +44,7 @@ bool EndpointRelayer::OnReadMessage(unsigned port, MessageInTransit* message) {
   // Otherwise, consume it even if the peer port is closed.
   unsigned peer_port = GetPeerPort(port);
   if (endpoints_[peer_port])
-    endpoints_[peer_port]->EnqueueMessage(make_scoped_ptr(message));
+    endpoints_[peer_port]->EnqueueMessage(reading_message.PassMessage());
   return true;
 }