Revert InstrumentingAgents back to being GarbageCollected<>.

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

Index: third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py
diff --git a/third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py b/third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py
index fbfdc6c0c77dd4bbee5fbdb6a28ffebdba0c2605..aa4a56fbb83e381412b415be23a1a629deeb8186 100755
--- a/third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py
+++ b/third_party/WebKit/Source/core/inspector/CodeGeneratorInstrumentation.py
@@ -97,11 +97,10 @@ 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}