Allow Win64 build of base library even in a Win32 build.

cloud_print/virtual_driver/win/virtual_driver64.gyp

 # 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.
 
 {
   'variables': {
     'virtual_driver_suffix': '64',
   },
   'target_defaults': {
     'defines': [
       '<@(nacl_win64_defines)',
     ],
     'dependencies': [
-      '<(DEPTH)/base/base.gyp:base_nacl_win64',
+      '<(DEPTH)/base/base.gyp:base_win64',
       '<(DEPTH)/chrome/chrome.gyp:launcher_support64',
       '<(DEPTH)/chrome/common_constants.gyp:common_constants_win64',
     ],
     'configurations': {
       'Common_Base': {
         'msvs_target_platform': 'x64',
       },
     },
   },
   'includes': [
     'virtual_driver.gypi',
   ],
 }