ipc: Rename TakeFileHandleForProcess->TakePlatformFileForTransit.

ipc/ipc_platform_file.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 "build/build_config.h"
 #include "ipc/ipc_platform_file.h"
 
 #if defined(OS_POSIX)
 #include <unistd.h>
 #endif
@@ skipping 26 matching lines @@
   // the other process from the I/O thread. Without the dup, calling code might
   // close the source handle before the message is sent, creating a race
   // condition.
   int fd = close_source_handle ? handle : ::dup(handle);
   return base::FileDescriptor(fd, true);
 #else
   #error Not implemented.
 #endif
 }
 
-PlatformFileForTransit TakeFileHandleForProcess(base::File file,
-                                                base::ProcessHandle process) {
+PlatformFileForTransit TakePlatformFileForTransit(base::File file) {
   return GetPlatformFileForTransit(file.TakePlatformFile(), true);
 }
 
 }  // namespace IPC