[wrapper-tracing] Fix V8GCController::getRetainerInfos

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h

 /*
  * Copyright (C) 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 157 matching lines @@
   }
 
   class TemporaryScriptWrappableVisitorScope {
     WTF_MAKE_NONCOPYABLE(TemporaryScriptWrappableVisitorScope);
     STACK_ALLOCATED();
 
    public:
     TemporaryScriptWrappableVisitorScope(
         v8::Isolate* isolate,
         std::unique_ptr<ScriptWrappableVisitor> visitor)
-        : m_isolate(isolate) {
-      swapWithV8PerIsolateDataVisitor(visitor);
+        : m_isolate(isolate), m_savedVisitor(std::move(visitor)) {
+      swapWithV8PerIsolateDataVisitor(m_savedVisitor);
     }
     ~TemporaryScriptWrappableVisitorScope() {
       swapWithV8PerIsolateDataVisitor(m_savedVisitor);
     }
 
-   private:
-    inline ScriptWrappableVisitor* currentVisitor(v8::Isolate* isolate) {
+    inline ScriptWrappableVisitor* currentVisitor() {
       return V8PerIsolateData::from(m_isolate)->scriptWrappableVisitor();
     }
 
+   private:
     void swapWithV8PerIsolateDataVisitor(
         std::unique_ptr<ScriptWrappableVisitor>&);
 
     v8::Isolate* m_isolate;
     std::unique_ptr<ScriptWrappableVisitor> m_savedVisitor;
   };
 
   void setScriptWrappableVisitor(
       std::unique_ptr<ScriptWrappableVisitor> visitor) {
     m_scriptWrappableVisitor = std::move(visitor);
@@ skipping 48 matching lines @@
   Vector<std::unique_ptr<EndOfScopeTask>> m_endOfScopeTasks;
   std::unique_ptr<ThreadDebugger> m_threadDebugger;
 
   Persistent<ActiveScriptWrappableSet> m_activeScriptWrappables;
   std::unique_ptr<ScriptWrappableVisitor> m_scriptWrappableVisitor;
 };
 
 }  // namespace blink
 
 #endif  // V8PerIsolateData_h