reland 31875. Revert was:...

chrome/browser/renderer_host/browser_render_process_host.cc

 // Copyright (c) 2009 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 
 #include <algorithm>
@@ skipping 39 matching lines @@
 #include "chrome/common/logging_chrome.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/process_watcher.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/result_codes.h"
 #include "chrome/renderer/render_process.h"
 #include "chrome/renderer/render_thread.h"
 #include "grit/generated_resources.h"
 #include "ipc/ipc_logging.h"
 #include "ipc/ipc_message.h"
+#include "ipc/ipc_platform_file.h"
 #include "ipc/ipc_switches.h"
 
 #if defined(OS_WIN)
 #include "app/win_util.h"
 #include "chrome/browser/sandbox_policy.h"
 #elif defined(OS_LINUX)
 #include "base/singleton.h"
 #include "chrome/browser/crash_handler_host_linux.h"
 #include "chrome/browser/zygote_host_linux.h"
 #include "chrome/browser/renderer_host/render_sandbox_host_linux.h"
@@ skipping 1059 matching lines @@
 }
 
 void BrowserRenderProcessHost::AddSpellCheckWord(const std::string& word) {
   Send(new ViewMsg_SpellChecker_WordAdded(word));
 }
 
 void BrowserRenderProcessHost::InitSpellChecker() {
   SpellCheckHost* spellcheck_host = profile()->GetSpellCheckHost();
   if (spellcheck_host) {
     PrefService* prefs = profile()->GetPrefs();
+    IPC::PlatformFileForTransit file;
+#if defined(OS_POSIX)
+    file = base::FileDescriptor(spellcheck_host->bdict_file(), false);
+#elif defined(OS_WIN)
+    ::DuplicateHandle(::GetCurrentProcess(), spellcheck_host->bdict_file(),
+                      GetHandle(), &file, 0, false, DUPLICATE_SAME_ACCESS);
+#endif
     Send(new ViewMsg_SpellChecker_Init(
-        spellcheck_host->bdict_fd(), spellcheck_host->custom_words(),
+        file,
+        spellcheck_host->custom_words(),
         spellcheck_host->language(),
         prefs->GetBoolean(prefs::kEnableAutoSpellCorrect)));
   } else {
     Send(new ViewMsg_SpellChecker_Init(
-        base::FileDescriptor(), std::vector<std::string>(), std::string(),
+        IPC::PlatformFileForTransit(),
+        std::vector<std::string>(),
+        std::string(),
         false));
   }
 }
 
 void BrowserRenderProcessHost::EnableAutoSpellCorrect(bool enable) {
   Send(new ViewMsg_SpellChecker_EnableAutoSpellCorrect(enable));
 }
 #endif