[inspector] implemented blackboxing inside v8

src/inspector/v8-debugger-script.h

 /*
  * Copyright (C) 2008 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 55 matching lines @@
 
   void setSourceURL(const String16&);
   virtual void setSourceMappingURL(const String16&) = 0;
   virtual void setSource(v8::Local<v8::String> source) {
     m_source = toProtocolString(source);
   }
 
   virtual bool getPossibleBreakpoints(
       const v8::debug::Location& start, const v8::debug::Location& end,
       std::vector<v8::debug::Location>* locations) = 0;
+  virtual void resetBlackboxedStateCache() = 0;
 
  protected:
   V8DebuggerScript(v8::Isolate*, String16 id, String16 url);
 
   String16 m_id;
   String16 m_url;
   String16 m_sourceURL;
   String16 m_source;
   mutable String16 m_hash;
   int m_startLine = 0;
   int m_startColumn = 0;
   int m_endLine = 0;
   int m_endColumn = 0;
   int m_executionContextId = 0;
 
   v8::Isolate* m_isolate;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(V8DebuggerScript);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8DEBUGGERSCRIPT_H_