Support default values for POD struct fields in mojom IDL.

mojo/public/bindings/generators/mojom_cpp_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 C++ source files from a mojom.Module."""
 
 import mojom
 import mojom_pack
 import mojom_generator
 
@@ skipping 88 matching lines @@
 
   cpp_filters = {
     "camel_to_underscores": mojom_generator.CamelToUnderscores,
     "cpp_const_wrapper_type": GetCppConstWrapperType,
     "cpp_field_type": GetCppFieldType,
     "cpp_type": GetCppType,
     "cpp_wrapper_type": GetCppWrapperType,
     "get_pad": mojom_pack.GetPad,
     "is_handle_kind": mojom_generator.IsHandleKind,
     "is_object_kind": mojom_generator.IsObjectKind,
+    "is_string_kind": mojom_generator.IsStringKind,
     "is_struct_with_handles": IsStructWithHandles,
     "struct_size": lambda ps: ps.GetTotalSize() + _HEADER_SIZE,
     "struct_from_method": mojom_generator.GetStructFromMethod,
     "stylize_method": mojom_generator.StudlyCapsToCamel,
   }
 
   @UseJinja("cpp_templates/module.h.tmpl", filters=cpp_filters)
   def GenerateModuleHeader(self):
     return {
       "module_name": self.module.name,
@@ skipping 31 matching lines @@
     self.Write(self.GenerateModuleInternalHeader(),
         "%s_internal.h" % self.module.name)
     self.Write(self.GenerateModuleSource(), "%s.cc" % self.module.name)
 
   def GetIncludePrefix(self):
     if not self.header_dir:
       return ""
     if self.header_dir[-1] == "/":
       return self.header_dir
     return self.header_dir + "/"