Add untrusted NaCl build for PPAPI proxy.

base/base.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 268 matching lines @@
           'profiler/scoped_profile.cc',
           'profiler/scoped_profile.h',
           'profiler/alternate_timer.cc',
           'profiler/alternate_timer.h',
           'profiler/tracked_time.cc',
           'profiler/tracked_time.h',
           'property_bag.cc',
           'property_bag.h',
           'rand_util.cc',
           'rand_util.h',
-          'rand_util_nacl.cc',
           'rand_util_posix.cc',
           'rand_util_win.cc',
           'safe_strerror_posix.cc',
           'safe_strerror_posix.h',
           'scoped_native_library.cc',
           'scoped_native_library.h',
           'scoped_temp_dir.cc',
           'scoped_temp_dir.h',
           'sequenced_task_runner.cc',
           'sequenced_task_runner.h',
@@ skipping 218 matching lines @@
                'file_util_posix.cc',
                'file_util_proxy.cc',
                'files/file_path_watcher_kqueue.cc',
                'native_library_posix.cc',
                'path_service.cc',
                'platform_file_posix.cc',
                'posix/unix_domain_socket.cc',
                'process_posix.cc',
                'process_util.cc',
                'process_util_posix.cc',
+               'rand_util.cc',
+               'rand_util_posix.cc',
                'scoped_native_library.cc',
                'scoped_temp_dir.cc',
                'shared_memory_posix.cc',
                'sys_info_posix.cc',
                'threading/sequenced_worker_pool.cc',
                'third_party/dynamic_annotations/dynamic_annotations.c',
             ],
           }],
           ['OS == "android" and >(nacl_untrusted_build)==0', {
             'sources!': [
@@ skipping 73 matching lines @@
           ['<(chromeos)!=1 or >(nacl_untrusted_build)==1', {
             'sources/': [
               ['exclude', '^chromeos/'],
             ],
           }],
         ],
       }],
     ],
   },
 }