Get rid of [Callback] extended attribute for parameters in IDL files

Source/bindings/derived_sources.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 152 matching lines @@
           '../core/scripts/preprocessor.pm',
           '<!@pymod_do_main(supplemental_idl_files <@(idl_files))',
         ],
         'outputs': [
           # FIXME:  The .cpp file should be in webkit/bindings once
           # we coax GYP into supporting it (see 'action' below).
           '<(SHARED_INTERMEDIATE_DIR)/webcore/bindings/V8<(RULE_INPUT_ROOT).cpp',
           '<(SHARED_INTERMEDIATE_DIR)/webkit/bindings/V8<(RULE_INPUT_ROOT).h',
         ],
         'variables': {
+          # IDL include paths. The generator will search recursively for IDL
+          # files under these locations.
           'generator_include_dirs': [
-            '--include', '../modules/filesystem',
-            '--include', '../modules/indexeddb',
-            '--include', '../modules/mediasource',
-            '--include', '../modules/mediastream',
-            '--include', '../modules/navigatorcontentutils',
-            '--include', '../modules/notifications',
-            '--include', '../modules/webaudio',
-            '--include', '../modules/webdatabase',
-            '--include', '../modules/webmidi',
-            '--include', '../core/css',
-            '--include', '../core/dom',
-            '--include', '../core/fileapi',
-            '--include', '../core/html',
-            '--include', '../core/page',
-            '--include', '../core/plugins',
-            '--include', '../core/storage',
-            '--include', '../core/svg',
-            '--include', '../core/testing',
-            '--include', '../core/workers',
-            '--include', '../core/xml',
+            '--include', '../modules',
+            '--include', '../core',
             '--include', '<(SHARED_INTERMEDIATE_DIR)/webkit',
           ],
         },
         'msvs_cygwin_shell': 0,
         # FIXME:  Note that we put the .cpp files in webcore/bindings
         # but the .h files in webkit/bindings.  This is to work around
         # the unfortunate fact that GYP strips duplicate arguments
         # from lists.  When we have a better GYP way to suppress that
         # behavior, change the output location.
         'action': [
@@ skipping 16 matching lines @@
           '--additionalIdlFiles',
           '<(webcore_test_support_idl_files)',
           '<(RULE_INPUT_PATH)',
           '<@(preprocessor)',
         ],
         'message': 'Generating binding from <(RULE_INPUT_PATH)',
       }],
     },
   ],
 }