IDL: Add build target for IDL dictionary impl generation in core

Source/core/core_generated.gyp

 #
 # 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.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 117 matching lines @@
       ]
     },
     {
       # GN version: //third_party/WebKit/Source/core:make_core_generated
       'target_name': 'make_core_generated',
       'type': 'none',
       'hard_dependency': 1,
       'dependencies': [
         'generated_testing_idls',
         'core_event_interfaces',
+        'css/generated.gyp:idl_dictionary_core_css_generated',

[bashi, 2014/07/30 11:32:26]

Maybe not the right place.

Also, we will need to add further
'foo/generated.gyp:idl_dictionary_core_foo_generated' when we add a dictionary
in core/foo.

         '../config.gyp:config',
       ],
       'sources': [
         # bison rule
         'css/CSSGrammar.y',
         'xml/XPathGrammar.y',
       ],
       'actions': [
         {
           'action_name': 'generatePrivateScript',
@@ skipping 671 matching lines @@
             '../build/scripts/rule_bison.py',
             '<(RULE_INPUT_PATH)',
             '<(blink_core_output_dir)',
             '<(bison_exe)',
           ],
         },
       ],
     },
   ],
 }