[inspector] added check that context always survives inspected context

src/inspector/inspected-context.h

 // Copyright 2016 the V8 project 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 V8_INSPECTOR_INSPECTEDCONTEXT_H_
 #define V8_INSPECTOR_INSPECTEDCONTEXT_H_
 
 #include "src/base/macros.h"
 #include "src/inspector/string-16.h"
 
@@ skipping 23 matching lines @@
   v8::Isolate* isolate() const;
   V8InspectorImpl* inspector() const { return m_inspector; }
 
   InjectedScript* getInjectedScript() { return m_injectedScript.get(); }
   void createInjectedScript();
   void discardInjectedScript();
 
  private:
   friend class V8InspectorImpl;
   InspectedContext(V8InspectorImpl*, const V8ContextInfo&, int contextId);
-  static void weakCallback(const v8::WeakCallbackInfo<InspectedContext>&);
-  static void consoleWeakCallback(
-      const v8::WeakCallbackInfo<InspectedContext>&);
 
   V8InspectorImpl* m_inspector;
   v8::Global<v8::Context> m_context;
   int m_contextId;
   int m_contextGroupId;
   const String16 m_origin;
   const String16 m_humanReadableName;
   const String16 m_auxData;
   bool m_reported;
   std::unique_ptr<InjectedScript> m_injectedScript;
   v8::Global<v8::Object> m_console;
 
   DISALLOW_COPY_AND_ASSIGN(InspectedContext);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_INSPECTEDCONTEXT_H_