Android IPC changes.

ipc/ipc_platform_file.cc

 // Copyright (c) 2011 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_platform_file.h"
 
+#if defined(OS_ANDROID)
+#include <unistd.h>
+#endif
+
 namespace IPC {
 
 PlatformFileForTransit GetFileHandleForProcess(base::PlatformFile handle,
                                                base::ProcessHandle process,
                                                bool close_source_handle) {
   IPC::PlatformFileForTransit out_handle;
 #if defined(OS_WIN)
   DWORD options = DUPLICATE_SAME_ACCESS;
   if (close_source_handle)
     options |= DUPLICATE_CLOSE_SOURCE;
@@ skipping 17 matching lines @@
   // condition.
   int fd = close_source_handle ? handle : ::dup(handle);
   out_handle = base::FileDescriptor(fd, true);
 #else
   #error Not implemented.
 #endif
   return out_handle;
 }
 
 }  // namespace IPC