Revert https://src.chromium.org/viewvc/chrome?view=rev&revision=231330

ipc/ipc_channel_win.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ipc/ipc_channel_win.h"
 
 #include <windows.h>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
@@ skipping 251 matching lines @@
   if (pipe_ == INVALID_HANDLE_VALUE) {
     // If this process is being closed, the pipe may be gone already.
     LOG(WARNING) << "Unable to create pipe \"" << pipe_name <<
                     "\" in " << (mode & MODE_SERVER_FLAG ? "server" : "client")
                     << " mode. Error :" << GetLastError();
     return false;
   }
 
   // Create the Hello message to be sent when Connect is called
   scoped_ptr<Message> m(new Message(MSG_ROUTING_NONE,
-                                    HELLO_MESSAGE_TYPE));
+                                    HELLO_MESSAGE_TYPE,
+                                    IPC::Message::PRIORITY_NORMAL));
 
   // Don't send the secret to the untrusted process, and don't send a secret
   // if the value is zero (for IPC backwards compatability).
   int32 secret = validate_client_ ? 0 : client_secret_;
   if (!m->WriteInt(GetCurrentProcessId()) ||
       (secret && !m->WriteUInt32(secret))) {
     CloseHandle(pipe_);
     pipe_ = INVALID_HANDLE_VALUE;
     return false;
   }
@@ skipping 225 matching lines @@
   int secret;
   do {  // Guarantee we get a non-zero value.
     secret = base::RandInt(0, std::numeric_limits<int>::max());
   } while (secret == 0);
 
   id.append(GenerateUniqueRandomChannelID());
   return id.append(base::StringPrintf("\\%d", secret));
 }
 
 }  // namespace IPC