[DevTools] Create agents on attach.

third_party/WebKit/Source/core/inspector/PageRuntimeAgent.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 30 matching lines @@
 class InspectedFrames;
 
 class CORE_EXPORT PageRuntimeAgent final : public InspectorRuntimeAgent {
 public:
     static PassOwnPtrWillBeRawPtr<PageRuntimeAgent> create(InspectorRuntimeAgent::Client* client, V8Debugger* debugger, InspectedFrames* inspectedFrames, int contextGroupId)
     {
         return adoptPtrWillBeNoop(new PageRuntimeAgent(client, debugger, inspectedFrames, contextGroupId));
     }
     ~PageRuntimeAgent() override;
     DECLARE_VIRTUAL_TRACE();
-    void init() override;
     void enable(ErrorString*) override;
     void disable(ErrorString*) override;
 
 private:
     PageRuntimeAgent(Client*, V8Debugger*, InspectedFrames*, int contextGroupId);
 
     ScriptState* defaultScriptState() override;
     void muteConsole() override;
     void unmuteConsole() override;
 
     RawPtrWillBeMember<InspectedFrames> m_inspectedFrames;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorPagerAgent_h)