CustomElements: taking CustomElementReactionStack out of frameHost

third_party/WebKit/Source/core/dom/custom/CEReactionsScope.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CEReactionsScope_h
 #define CEReactionsScope_h
 
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/StdLibExtras.h"
 
 namespace blink {
 
 class CustomElementReaction;
 class Element;
-class FrameHost;
 
 // https://html.spec.whatwg.org/multipage/scripting.html#cereactions
 class CORE_EXPORT CEReactionsScope final {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(CEReactionsScope);
 public:
     static CEReactionsScope* current()
     {
         return s_topOfStack;
     }
 
     CEReactionsScope()
         : m_prev(s_topOfStack)
+        , m_workToDo(false)
     {
         s_topOfStack = this;
     }
 
     ~CEReactionsScope()
     {
-        if (m_frameHost.get())
+        if (m_workToDo)
             invokeReactions();
         s_topOfStack = s_topOfStack->m_prev;
     }
 
     void enqueueToCurrentQueue(Element*, CustomElementReaction*);
 
 private:
     static CEReactionsScope* s_topOfStack;
 
     void invokeReactions();
 
     CEReactionsScope* m_prev;
-    Member<FrameHost> m_frameHost;
+    bool m_workToDo;
 };
 
 } // namespace blink
 
 #endif // CEReactionsScope_h