Remove support for [LegacyImplementedInBaseClass] IDL extended attribute

Source/bindings/scripts/compute_dependencies.py

 #!/usr/bin/python
 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
@@ skipping 314 matching lines @@
         paths_dict['include_paths'].append(this_include_path)
 
 
 def generate_dependencies(idl_filename):
     """Compute dependencies for IDL file, returning True if main (non-partial) interface"""
     full_path = os.path.realpath(idl_filename)
     idl_file_contents = get_file_contents(full_path)
 
     extended_attributes = get_interface_extended_attributes_from_idl(idl_file_contents)
     implemented_as = extended_attributes.get('ImplementedAs')
-    this_include_path = (
-        include_path(idl_filename, implemented_as)
-        # implemented interfaces with [LegacyImplementedInBaseClass] have no
-        # header of their own, as they just use the header of the base class
-        if 'LegacyImplementedInBaseClass' not in extended_attributes else None)
+    this_include_path = include_path(idl_filename, implemented_as)
 
     # Handle partial interfaces
     partial_interface_name = get_partial_interface_name_from_idl(idl_file_contents)
     if partial_interface_name:
         add_paths_to_partials_dict(partial_interface_name, full_path, this_include_path)
         return False
 
     # If not a partial interface, the basename is the interface name
     interface_name, _ = os.path.splitext(os.path.basename(idl_filename))
 
@@ skipping 214 matching lines @@
     write_dependencies_file(options.interface_dependencies_file, only_if_changed)
     write_pickle_file(options.interfaces_info_file, interfaces_info, only_if_changed)
     for interface_name, filename in global_constructors_filenames.iteritems():
         if interface_name in interfaces_info:
             write_global_constructors_partial_interface(interface_name, filename, global_constructors[interface_name], only_if_changed)
     write_event_names_file(options.event_names_file, only_if_changed)
 
 
 if __name__ == '__main__':
     main()