Add untrusted NaCl build for PPAPI proxy.

ppapi/ppapi_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 is the "public" ppapi.gyp file, which must have dependencies on the
-# redistributable portions of PPAPI only. This prevents circular dependencies
-# in the .gyp files (since ppapi_internal depends on parts of Chrome).
-
 {
+  'variables': {
+    'chromium_code': 1,
+  },
+  'includes': [
+    '../native_client/build/untrusted.gypi',

[bbudge, 2012/06/14 02:45:10]

I changed this (and others) to common.gypi to match native_client.gyp.

+    'ppapi_proxy.gypi',
+  ],
   'conditions': [
-    ['disable_nacl==0 and build_ppapi_ipc_proxy_untrusted==1', {
-      'includes': ['ppapi_proxy_untrusted.gypi'],
+    ['disable_nacl_untrusted==0', {
+      'targets': [
+        {
+          'target_name': 'ppapi_proxy_untrusted',
+          'type': 'none',
+          'variables': {
+            'ppapi_proxy_target': 1,
+            'nacl_untrusted_build': 1,
+            'nlib_target': 'libppapi_proxy_untrusted.a',
+            'build_glibc': 0,
+            'build_newlib': 1,
+          },
+          'dependencies': [
+            '<(DEPTH)/native_client/tools.gyp:prep_toolchain',
+            '<(DEPTH)/native_client/src/untrusted/pthread/pthread.gyp:pthread_lib',

[Mark Seaborn, 2012/06/13 20:27:37]

I think this is wrong, because this is the user libpthread, which is not
suitable for the IRT.  If this actually gets linked into the IRT, the IRT will
go horribly wrong. :-)

[bbudge, 2012/06/14 02:45:10]

Done.

+            '<(DEPTH)/native_client/src/untrusted/nacl/nacl.gyp:nacl_lib_newlib',
+            '../base/base_untrusted.gyp:base_untrusted',
+            '../ipc/ipc_untrusted.gyp:ipc_untrusted',
+            '../ppapi/ppapi_shared_untrusted.gyp:ppapi_shared_untrusted',
+          ],
+        },
+      ],
     }],
   ],
-  'targets': [],
 }