Fix a hang in the GPU process in the XP presentation path.

sandbox/win/src/sync_dispatcher.cc

 // Copyright (c) 2013 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 "sandbox/win/src/sync_dispatcher.h"
 
 #include "base/win/windows_version.h"
 #include "sandbox/win/src/crosscall_client.h"
 #include "sandbox/win/src/interception.h"
 #include "sandbox/win/src/interceptors.h"
@@ skipping 19 matching lines @@
   };
 
   ipc_calls_.push_back(create_params);
   ipc_calls_.push_back(open_params);
 }
 
 bool SyncDispatcher::SetupService(InterceptionManager* manager,
                                   int service) {
   bool ret = false;
   static const wchar_t* kWin32SyncDllName =
-      base::win::GetVersion() >= base::win::VERSION_WIN8 ? kKernelBasedllName :
+      base::win::GetVersion() >= base::win::VERSION_WIN7 ? kKernelBasedllName :
           kKerneldllName;
 
   // We need to intercept kernelbase.dll on Windows 8 and beyond and
   // kernel32.dll for earlier versions.
   if (IPC_CREATEEVENT_TAG == service) {
     ret = INTERCEPT_EAT(manager, kWin32SyncDllName, CreateEventW,
                         CREATE_EVENTW_ID, 20);
     if (ret) {
       ret = INTERCEPT_EAT(manager, kWin32SyncDllName, CreateEventA,
                           CREATE_EVENTA_ID, 20);
@@ skipping 41 matching lines @@
   DWORD ret = SyncPolicy::OpenEventAction(result, *ipc->client_info, *name,
                                           desired_access, inherit_handle,
                                           &handle);
   // Return operation status on the IPC.
   ipc->return_info.win32_result = ret;
   ipc->return_info.handle = handle;
   return true;
 }
 
 }  // namespace sandbox