[DevTools] Pass error object when reporting exceptions.

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 88 matching lines @@
     virtual DOMTimerCoordinator* timers() = 0;
 
     virtual SecurityContext& securityContext() = 0;
     KURL contextURL() const { return virtualURL(); }
     KURL contextCompleteURL(const String& url) const { return virtualCompleteURL(url); }
 
     bool shouldSanitizeScriptError(const String& sourceURL, AccessControlStatus);
     void reportException(ErrorEvent*, AccessControlStatus);
 
     virtual void addConsoleMessage(ConsoleMessage*) = 0;
-    virtual void exceptionThrown(const String& errorMessage, std::unique_ptr<SourceLocation>) = 0;
+    virtual void exceptionThrown(ErrorEvent*) = 0;
 
     PublicURLManager& publicURLManager();
 
     virtual void removeURLFromMemoryCache(const KURL&);
 
     void suspendActiveDOMObjects();
     void resumeActiveDOMObjects();
     void stopActiveDOMObjects();
     void postSuspendableTask(std::unique_ptr<SuspendableTask>);
     void notifyContextDestroyed() override;
@@ skipping 43 matching lines @@
     virtual const KURL& virtualURL() const = 0;
     virtual KURL virtualCompleteURL(const String&) const = 0;
 
 private:
     bool dispatchErrorEvent(ErrorEvent*, AccessControlStatus);
     void runSuspendableTasks();
 
     unsigned m_circularSequentialID;
 
     bool m_inDispatchErrorEvent;
-    class PendingException;
-    std::unique_ptr<Vector<std::unique_ptr<PendingException>>> m_pendingExceptions;
+    HeapVector<Member<ErrorEvent>> m_pendingExceptions;
 
     bool m_activeDOMObjectsAreSuspended;
     bool m_activeDOMObjectsAreStopped;
 
     Member<PublicURLManager> m_publicURLManager;
 
     // Counter that keeps track of how many window interaction calls are allowed
     // for this ExecutionContext. Callers are expected to call
     // |allowWindowInteraction()| and |consumeWindowInteraction()| in order to
     // increment and decrement the counter.
     int m_windowInteractionTokens;
 
     Deque<std::unique_ptr<SuspendableTask>> m_suspendedTasks;
     bool m_isRunSuspendableTasksScheduled;
 
     ReferrerPolicy m_referrerPolicy;
 };
 
 } // namespace blink
 
 #endif // ExecutionContext_h