PPAPI/NaCl: Make NaClIPCAdapter transfer handles more generally

ppapi/ppapi_ipc_proxy_untrusted.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.
 
+# This file is named ppapi_ipc_proxy_untrusted.gyp instead of
+# ppapi_proxy_untrusted.gyp, because there is already a file with that name in
+# ppapi/native_client/src/shared/ppapi_proxy. This causes problems on Mac when
+# generating for XCode. TODO(dmichael): This file should probably be renamed to
+# ppapi_proxy_untrusted.gyp when we remove the SRPC NaCl proxy.
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common_untrusted.gypi',
     'ppapi_proxy.gypi',
   ],
   'conditions': [
     ['disable_nacl==0 and disable_nacl_untrusted==0', {
@@ skipping 19 matching lines @@
             '../native_client/tools.gyp:prep_toolchain',
             '../base/base_untrusted.gyp:base_untrusted',
             '../gpu/command_buffer/command_buffer_untrusted.gyp:gles2_utils_untrusted',
             '../gpu/gpu_untrusted.gyp:command_buffer_client_untrusted',
             '../gpu/gpu_untrusted.gyp:command_buffer_common_untrusted',
             '../gpu/gpu_untrusted.gyp:gles2_implementation_untrusted',
             '../gpu/gpu_untrusted.gyp:gles2_cmd_helper_untrusted',
             '../gpu/gpu_untrusted.gyp:gpu_ipc_untrusted',
             '../ipc/ipc_untrusted.gyp:ipc_untrusted',
             '../ppapi/ppapi_shared_untrusted.gyp:ppapi_shared_untrusted',
+            '../ppapi/ppapi_ipc_untrusted.gyp:ppapi_ipc_untrusted',
           ],
         },
       ],
     }],
   ],
 }