Introduce ChannelMojo

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 118 matching lines @@
     }
   }
 
   return true;
 }
 
 base::ProcessId ChannelWin::GetPeerPID() const {
   return peer_pid_;
 }
 
+base::ProcessId ChannelWin::GetSelfPID() const {
+  return GetCurrentProcessId();
+}
+
+ChannelHandle ChannelWin::TakePipeHandle() {
+  ChannelHandle handle = ChannelHandle(pipe_);
+  pipe_ = INVALID_HANDLE_VALUE;
+  return handle;
+}
+
 // static
 bool ChannelWin::IsNamedServerInitialized(
     const std::string& channel_id) {
   if (WaitNamedPipe(PipeName(channel_id, NULL).c_str(), 1))
     return true;
   // If ERROR_SEM_TIMEOUT occurred, the pipe exists but is handling another
   // connection.
   return GetLastError() == ERROR_SEM_TIMEOUT;
 }
 
@@ skipping 392 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