[forbots] IWYU for ax_enums.h

tools/json_schema_compiler/h_generator.py

 # 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.
 
 import os
 
 from code import Code
 from model import PropertyType
 import cpp_util
 import schema_util
@@ skipping 123 matching lines @@
         dependency_order.append(type_)
 
     for type_ in self._namespace.types.values():
       ExpandType([], type_)
     return dependency_order
 
   def _GenerateEnumDeclaration(self, enum_name, type_):
     """Generate a code object with the  declaration of a C++ enum.
     """
     c = Code()
-    c.Sblock('enum %s {' % enum_name)
+    c.Sblock('enum %s : int {' % enum_name)
     c.Append(self._type_helper.GetEnumNoneValue(type_) + ',')
     for value in type_.enum_values:
       current_enum_string = self._type_helper.GetEnumValue(type_, value)
       c.Append(current_enum_string + ',')
     c.Append('%s = %s,' % (
         self._type_helper.GetEnumLastValue(type_), current_enum_string))
     c.Eblock('};')
     return c
 
   def _GenerateFields(self, props):
@@ skipping 241 matching lines @@
     """Builds the parameter list for a function, given an array of parameters.
     """
     # |error| is populated with warnings and/or errors found during parsing.
     # |error| being set does not necessarily imply failure and may be
     # recoverable.
     # For example, optional properties may have failed to parse, but the
     # parser was able to continue.
     if self._generate_error_messages:
       params += ('base::string16* error',)
     return ', '.join(str(p) for p in params)