Make gyp build get idl files from only one location.

plugin/idl/idl.gyp

Index: plugin/idl/idl.gyp
===================================================================
--- plugin/idl/idl.gyp	(revision 30839)
+++ plugin/idl/idl.gyp	(working copy)
@@ -11,64 +11,7 @@
     'idl_out_path': '<(SHARED_INTERMEDIATE_DIR)/idl_glue',
     'static_glue_dir': '../../../<(nixysadir)/static_glue/npapi',
     'idl_files': [
-      'archive_request.idl',
-      'bitmap.idl',
-      'bounding_box.idl',
-      'buffer.idl',
-      'canvas.idl',
-      'canvas_paint.idl',
-      'canvas_shader.idl',
-      'clear_buffer.idl',
-      'client.idl',
-      'counter.idl',
-      'cursor.idl',
-      'curve.idl',
-      'display_mode.idl',
-      'draw_context.idl',
-      'draw_element.idl',
-      'draw_list.idl',
-      'draw_pass.idl',
-      'effect.idl',
-      'element.idl',
-      'event.idl',
-      'field.idl',
-      'file_request.idl',
-      'function.idl',
-      'material.idl',
-      'matrix4_axis_rotation.idl',
-      'matrix4_composition.idl',
-      'matrix4_scale.idl',
-      'matrix4_translation.idl',
-      'named.idl',
-      'pack.idl',
-      'param.idl',
-      'param_array.idl',
-      'param_object.idl',
-      'param_operation.idl',
-      'plugin.idl',
-      'primitive.idl',
-      'raw_data.idl',
-      'ray_intersection_info.idl',
-      'render_event.idl',
-      'render_node.idl',
-      'render_surface.idl',
-      'render_surface_set.idl',
-      'sampler.idl',
-      'shape.idl',
-      'skin.idl',
-      'standard_param.idl',
-      'state.idl',
-      'state_set.idl',
-      'stream.idl',
-      'stream_bank.idl',
-      'texture.idl',
-      'tick_event.idl',
-      'transform.idl',
-      'tree_traversal.idl',
-      'types.idl',
-      'vector.idl',
-      'vertex_source.idl',
-      'viewport.idl',
+      '<!@(python get_idl_files.py)',
     ],
   },
   'target_defaults': {