Remove debugger id, use local frame id instead.

Source/core/inspector/MainThreadDebugger.h

 /*
  * Copyright (c) 2011 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 42 matching lines @@
         virtual void quitNow() = 0;
     };
 
     static PassOwnPtrWillBeRawPtr<MainThreadDebugger> create(PassOwnPtr<ClientMessageLoop> clientMessageLoop, v8::Isolate* isolate)
     {
         return adoptPtrWillBeNoop(new MainThreadDebugger(clientMessageLoop, isolate));
     }
 
     ~MainThreadDebugger() override;
 
-    static void setContextDebugData(v8::Local<v8::Context>, const String& type, int contextDebugId);
-    void addListener(ScriptDebugListener*, LocalFrame*, int contextDebugId);
+    static void initializeContext(v8::Local<v8::Context>, int worldId);
+    void addListener(ScriptDebugListener*, LocalFrame*);
     void removeListener(ScriptDebugListener*, LocalFrame*);
 
     static MainThreadDebugger* instance();
     static void interruptMainThreadAndRun(PassOwnPtr<InspectorTaskRunner::Task>);
     InspectorTaskRunner* taskRunner() const { return m_taskRunner.get(); }
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     MainThreadDebugger(PassOwnPtr<ClientMessageLoop>, v8::Isolate*);
@@ skipping 10 matching lines @@
     RawPtrWillBeMember<LocalFrame> m_pausedFrame;
     OwnPtr<InspectorTaskRunner> m_taskRunner;
 
     static MainThreadDebugger* s_instance;
 };
 
 } // namespace blink
 
 
 #endif // MainThreadDebugger_h