[mojo] Add mojom parser support for native-only structs

mojo/public/tools/bindings/generators/mojom_js_generator.py

 # Copyright 2013 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.
 
 """Generates JavaScript source files from a mojom.Module."""
 
 import mojom.generate.generator as generator
 import mojom.generate.module as mojom
 import mojom.generate.pack as pack
 from mojom.generate.template_expander import UseJinja
@@ skipping 356 matching lines @@
     "validate_union_params": JavaScriptValidateUnionParams,
   }
 
   def GetParameters(self):
     return {
       "namespace": self.module.namespace,
       "imports": self.GetImports(),
       "kinds": self.module.kinds,
       "enums": self.module.enums,
       "module": self.module,
-      "structs": self.GetStructs() + self.GetStructsFromMethods(),
+      "structs": self.GetAllStructs(),
       "unions": self.GetUnions(),
       "interfaces": self.GetInterfaces(),
       "imported_interfaces": self.GetImportedInterfaces(),
     }
 
   @UseJinja("js_templates/module.amd.tmpl", filters=js_filters)
   def GenerateAMDModule(self):
     return self.GetParameters()
 
   def GenerateFiles(self, args):
@@ skipping 11 matching lines @@
       counter = 0
       while unique_name in used_names:
         counter += 1
         unique_name = simple_name + str(counter)
 
       used_names.add(unique_name)
       each_import["unique_name"] = unique_name + "$"
       counter += 1
     return self.module.imports
 
+  def GetAllStructs(self):
+    return filter(lambda struct: not struct.native_only,
+                  self.GetStructs() + self.GetStructsFromMethods())
+
   def GetImportedInterfaces(self):
     interface_to_import = {};
     for each_import in self.module.imports:
       for each_interface in each_import["module"].interfaces:
         name = each_interface.name
         interface_to_import[name] = each_import["unique_name"] + "." + name
     return interface_to_import;