WIP: A couple of more ChannelMojo speedup ideas

ipc/ipc_perftest_support.cc

Index: ipc/ipc_perftest_support.cc
diff --git a/ipc/ipc_perftest_support.cc b/ipc/ipc_perftest_support.cc
index f8a11c549dc8387aebc3e89ecd26ef3628a0f0c6..43b0e02f84d95eb92c26234172ce34136663767a 100644
--- a/ipc/ipc_perftest_support.cc
+++ b/ipc/ipc_perftest_support.cc
@@ -229,11 +229,16 @@ IPCChannelPerfTestBase::GetDefaultTestParams() {
   // Test several sizes. We use 12^N for message size, and limit the message
   // count to keep the test duration reasonable.
   std::vector<PingPongTestParams> list;
+#if 0
   list.push_back(PingPongTestParams(12, 50000));
   list.push_back(PingPongTestParams(144, 50000));
   list.push_back(PingPongTestParams(1728, 50000));
   list.push_back(PingPongTestParams(20736, 12000));
   list.push_back(PingPongTestParams(248832, 1000));
+#else
+  // list.push_back(PingPongTestParams(12, 1000000));
+  list.push_back(PingPongTestParams(12, 1000000));
+#endif
   return list;
 }