Oilpan: Prepare moving InspectorAgent related classes to oilpan

Source/core/inspector/InspectorProfilerAgent.cpp

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 277 matching lines @@
 void InspectorProfilerAgent::willEnterNestedRunLoop()
 {
     idleStarted();
 }
 
 void InspectorProfilerAgent::didLeaveNestedRunLoop()
 {
     idleFinished();
 }
 
+void InspectorProfilerAgent::trace(Visitor* visitor)
+{
+    visitor->trace(m_injectedScriptManager);
+    InspectorBaseAgent::trace(visitor);
+}
+
 } // namespace blink