Add support for 'nocompile' to IDL schema compiler.

tools/json_schema_compiler/compiler.py

 #!/usr/bin/env python
 # 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.
 """Generator for C++ structs from api json files.
 
 The purpose of this tool is to remove the need for hand-written code that
 converts to and from base::Value types when receiving javascript api calls.
 Originally written for generating code for extension apis. Reference schemas
 are in chrome/common/extensions/api.
@@ skipping 30 matching lines @@
   if len(api_defs) != 1:
     sys.exit("File %s has multiple schemas. Files are only allowed to contain a"
              " single schema." % schema)
 
   return api_defs
 
 def handle_single_schema(filename, dest_dir, root, root_namespace):
   schema = os.path.normpath(filename)
   schema_filename, schema_extension = os.path.splitext(schema)
   path, short_filename = os.path.split(schema_filename)
-  api_defs = load_schema(schema)
+  api_defs = json_schema.DeleteNocompileNodes(load_schema(schema))
 
   api_model = model.Model()
 
   for target_namespace in api_defs:
     referenced_schemas = target_namespace.get('dependencies', [])
     # Load type dependencies into the model.
     # TODO(miket): do we need this in IDL?
     for referenced_schema in referenced_schemas:
       referenced_schema_path = os.path.join(
           os.path.dirname(schema), referenced_schema + '.json')
@@ skipping 124 matching lines @@
 
   if not args:
     sys.exit(0) # This is OK as a no-op
   dest_dir = opts.destdir
   root_namespace = opts.namespace
 
   if opts.bundle:
     handle_bundle_schema(args, dest_dir, opts.root, root_namespace)
   else:
     handle_single_schema(args[0], dest_dir, opts.root, root_namespace)