Incorporate shimming into the irt

src/untrusted/irt/shim_generator.gyp

+# Copyright 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 builds the PNaCl IRT shim which part of the irt
+# Since it is built by nacl-gcc, it will be in the nacl-gcc build.
+
+{
+  'variables': {
+    # Define p2p_apis for ppapi_sources.gypi,
+    # in case it wasn't already defined.
+    # Somehow other gyp files get away with not defining this.
+    'p2p_apis': 1,
+    'glob_files': [
+       '>(python_exe)', '<(DEPTH)/native_client/build/gyp_glob.py',
+    ],
+  },
+  'includes': [
+    '../../../build/common.gypi',
+    '../../../../ppapi/ppapi_sources.gypi',
+  ],
+  'targets' : [{
+    'target_name': 'shim_generated_source',
+    'type': 'none',
+    'actions' : [{
+      'action_name': 'generate_shim_source',
+      'msvs_cygwin_shell': 0,
+      'description': 'generating the pnacl IRT shim',
+      'inputs': [
+        # Potentially all python scripts in the generators directory.

[Nick Bray (chromium), 2012/08/27 23:00:02]

The globbing isn't thrilling, but we realize its identical to what the scons
build does at the moment.
Maybe ok to land chrome side to start, but should be made explicit there with a
follow on CL.

+        '>!@(<(glob_files) ../../../../ppapi/generators/ *.py)',
+        # Potentially all IDL files in the API and DEV-API directory.
+        '>!@(<(glob_files) ../../../../ppapi/api/ *.idl)',
+        '>!@(<(glob_files) ../../../../ppapi/api/dev/ *.idl)',
+      ],
+      'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/pnacl_shim.c', ],
+      'action': [
+        '>(python_exe)',
+        '../../../../ppapi/generators/generator.py',

[Nick Bray (chromium), 2012/08/27 23:00:02]

Note how everything here (including the generator script) is on the ppapi side.
This suggests landing the change there.

+        '--srcroot=api',
+        '--wnone',
+        '--pnacl',
+        '--pnaclshim=<(SHARED_INTERMEDIATE_DIR)/pnacl_shim.c',
+        '<@(_inputs)',
+      ],
+    },],
+  },],
+}