Disambiguate LifecycleObserver::contextDestroyed

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

 /*
  * Copyright (C) 2008 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 #define SuspendableObject_h
 
 #include "core/CoreExport.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "wtf/Assertions.h"
 
 namespace blink {
 
 class CORE_EXPORT SuspendableObject : public ContextLifecycleObserver {
  public:
-  SuspendableObject(ExecutionContext*);
+  explicit SuspendableObject(ExecutionContext*);
 
   // suspendIfNeeded() should be called exactly once after object construction
   // to synchronize the suspend state with that in ExecutionContext.
   void suspendIfNeeded();
 #if DCHECK_IS_ON()
   bool suspendIfNeededCalled() const { return m_suspendIfNeededCalled; }
 #endif
 
   // These methods have an empty default implementation so that subclasses
   // which don't need special treatment can skip implementation.
   virtual void suspend();
   virtual void resume();
 
   void didMoveToNewExecutionContext(ExecutionContext*);
 
  protected:
   virtual ~SuspendableObject();
 
  private:
 #if DCHECK_IS_ON()
   bool m_suspendIfNeededCalled;
 #endif
 };
 
 }  // namespace blink
 
 #endif  // SuspendableObject_h