Revert of Eliminate a potential race in IPC::ChannelProxy

ipc/ipc_channel_nacl.cc

Index: ipc/ipc_channel_nacl.cc
diff --git a/ipc/ipc_channel_nacl.cc b/ipc/ipc_channel_nacl.cc
index f796af9ea3dc54bc86c501bc41d9ba839e8d3bfc..1ecd5718245d3c00a0663ce9f1221ea3b21962bd 100644
--- a/ipc/ipc_channel_nacl.cc
+++ b/ipc/ipc_channel_nacl.cc
@@ -17,7 +17,6 @@
 #include "base/task_runner_util.h"
 #include "base/threading/simple_thread.h"
 #include "ipc/file_descriptor_set_posix.h"
-#include "ipc/ipc_listener.h"
 #include "ipc/ipc_logging.h"
 #include "native_client/src/public/imc_syscalls.h"
 #include "native_client/src/public/imc_types.h"
@@ -139,15 +138,9 @@
   Close();
 }
 
-base::ProcessId Channel::ChannelImpl::peer_pid() const {
-  // This shouldn't actually get used in the untrusted side of the proxy, and we
-  // don't have the real pid anyway.
-  return -1;
-}
-
 bool Channel::ChannelImpl::Connect() {
   if (pipe_ == -1) {
-    DLOG(WARNING) << "Channel creation failed: " << pipe_name_;
+    DLOG(INFO) << "Channel creation failed: " << pipe_name_;
     return false;
   }
 
@@ -171,10 +164,6 @@
   waiting_connect_ = false;
   // If there were any messages queued before connection, send them.
   ProcessOutgoingMessages();
-  base::MessageLoopProxy::current()->PostTask(FROM_HERE,
-      base::Bind(&Channel::ChannelImpl::CallOnChannelConnected,
-                 weak_ptr_factory_.GetWeakPtr()));
-
   return true;
 }
 
@@ -302,10 +291,6 @@
              << " on fd " << pipe_;
   }
   return true;
-}
-
-void Channel::ChannelImpl::CallOnChannelConnected() {
-  listener()->OnChannelConnected(peer_pid());
 }
 
 Channel::ChannelImpl::ReadState Channel::ChannelImpl::ReadData(
@@ -387,7 +372,9 @@
 }
 
 base::ProcessId Channel::peer_pid() const {
-  return channel_impl_->peer_pid();
+  // This shouldn't actually get used in the untrusted side of the proxy, and we
+  // don't have the real pid anyway.
+  return -1;
 }
 
 bool Channel::Send(Message* message) {