Make ExecutionContext aware about how it can return CoreProbeSink

third_party/WebKit/Source/core/dom/ExecutionContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 25 matching lines @@
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 #include "platform/loader/fetch/AccessControlStatus.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/ReferrerPolicy.h"
 #include "platform/wtf/Noncopyable.h"
 #include "public/platform/WebTraceLocation.h"
 
 namespace blink {
 
-class SuspendableObject;
 class ConsoleMessage;
+class CoreProbeSink;
 class DOMTimerCoordinator;
 class ErrorEvent;
 class EventQueue;
 class EventTarget;
 class ExecutionContextTask;
 class LocalDOMWindow;
+class SuspendableObject;
 class PublicURLManager;
 class SecurityOrigin;
 class ScriptState;
 enum class TaskType : unsigned;
 
 enum ReasonForCallingCanExecuteScripts {
   kAboutToExecuteScript,
   kNotAboutToExecuteScript
 };
 
@@ skipping 121 matching lines @@
   // tokens are valid policies.
   //
   // If |supportLegacyKeywords| is true, then the legacy keywords
   // "never", "default", "always", and "origin-when-crossorigin" are
   // parsed as valid policies.
   void ParseAndSetReferrerPolicy(const String& policies,
                                  bool support_legacy_keywords = false);
   void SetReferrerPolicy(ReferrerPolicy);
   virtual ReferrerPolicy GetReferrerPolicy() const { return referrer_policy_; }
 
+  virtual CoreProbeSink* GetInstrumentingAgents() { return nullptr; }

[dgozman, 2017/04/28 00:06:38]

Let's call this GetProbeSink. @alph: we should rename from instrumenting agents
elsewhere.

[kinuko, 2017/04/28 03:16:26]

Done.

+
  protected:
   ExecutionContext();
   virtual ~ExecutionContext();
 
   virtual const KURL& VirtualURL() const = 0;
   virtual KURL VirtualCompleteURL(const String&) const = 0;
 
  private:
   bool DispatchErrorEventInternal(ErrorEvent*, AccessControlStatus);
 
@@ skipping 12 matching lines @@
   // |allowWindowInteraction()| and |consumeWindowInteraction()| in order to
   // increment and decrement the counter.
   int window_interaction_tokens_;
 
   ReferrerPolicy referrer_policy_;
 };
 
 }  // namespace blink
 
 #endif  // ExecutionContext_h