Revert InstrumentingAgents back to being GarbageCollected<>.

third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py

 #!/usr/bin/env 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.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 79 matching lines @@
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 ${forward_list}
 
-class CORE_EXPORT InstrumentingAgents : public GarbageCollectedFinalized<InstrumentingAgents> {
+class CORE_EXPORT InstrumentingAgents : public GarbageCollected<InstrumentingAgents> {
     WTF_MAKE_NONCOPYABLE(InstrumentingAgents);
 public:
     InstrumentingAgents();
-    ~InstrumentingAgents() { }
     DECLARE_TRACE();
 ${accessor_list}
 
 private:
 ${member_list}
 };
 
 }
 
 #endif // !defined(InstrumentingAgents_h)
@@ skipping 352 matching lines @@
     if not output_dirpath:
         raise Exception("Output directory must be specified")
 except Exception:
     # Work with python 2 and 3 http://docs.python.org/py3k/howto/pyporting.html
     exc = sys.exc_info()[1]
     sys.stderr.write("Failed to parse command-line arguments: %s\n\n" % exc)
     sys.stderr.write("Usage: <script> --output_dir <output_dir> InspectorInstrumentation.idl\n")
     exit(1)
 
 generate(input_path, output_dirpath)