Remove ScriptState::current() from IDBRequest

Source/bindings/v8/ScriptState.h

 // Copyright 2014 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 ScriptState_h
 #define ScriptState_h
 
 #include "bindings/v8/ScopedPersistent.h"
 #include "bindings/v8/V8PerContextData.h"
 #include "wtf/RefCounted.h"
@@ skipping 28 matching lines @@
         {
             m_context->Exit();
         }
 
     private:
         v8::HandleScope m_handleScope;
         v8::Handle<v8::Context> m_context;
     };
 
     static PassRefPtr<ScriptState> create(v8::Handle<v8::Context>, PassRefPtr<DOMWrapperWorld>);
-    ~ScriptState();
+    virtual ~ScriptState();
 
     static ScriptState* current(v8::Isolate* isolate)
     {
         return from(isolate->GetCurrentContext());
     }
 
     static ScriptState* from(v8::Handle<v8::Context> context)
     {
         ASSERT(!context.IsEmpty());
         ScriptState* scriptState = static_cast<ScriptState*>(context->GetAlignedPointerFromEmbedderData(v8ContextPerContextDataIndex));
         // ScriptState::from() must not be called for a context that does not have
         // valid embedder data in the embedder field.
         RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(scriptState);
         RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(scriptState->context() == context);
         return scriptState;
     }
 
     static ScriptState* forMainWorld(LocalFrame*);
 
     v8::Isolate* isolate() const { return m_isolate; }
     DOMWrapperWorld& world() const { return *m_world; }
-    ExecutionContext* executionContext() const;
     DOMWindow* domWindow() const;
+    virtual ExecutionContext* executionContext() const;
+    virtual void setExecutionContext(PassRefPtr<ExecutionContext>);
 
     // This can return an empty handle if the v8::Context is gone.
     v8::Handle<v8::Context> context() const { return m_context.newLocal(m_isolate); }
     bool contextIsEmpty() const { return m_context.isEmpty(); }
     void clearContext() { return m_context.clear(); }
 
     V8PerContextData* perContextData() const { return m_perContextData.get(); }
     void disposePerContextData() { m_perContextData = nullptr; }
 
     bool evalEnabled() const;
     void setEvalEnabled(bool);
     ScriptValue getFromGlobalObject(const char* name);
 
-private:
+protected:
     ScriptState(v8::Handle<v8::Context>, PassRefPtr<DOMWrapperWorld>);
 
+private:
     v8::Isolate* m_isolate;
     // This persistent handle is weak.
     ScopedPersistent<v8::Context> m_context;
 
     // This RefPtr doesn't cause a cycle because all persistent handles that DOMWrapperWorld holds are weak.
     RefPtr<DOMWrapperWorld> m_world;
 
     // This OwnPtr causes a cycle:
     // V8PerContextData --(Persistent)--> v8::Context --(RefPtr)--> ScriptState --(OwnPtr)--> V8PerContextData
     // So you must explicitly clear the OwnPtr by calling disposePerContextData()
     // once you no longer need V8PerContextData. Otherwise, the v8::Context will leak.
     OwnPtr<V8PerContextData> m_perContextData;
 };
 
+class ScriptStateForTesting : public ScriptState {
+public:
+    static PassRefPtr<ScriptStateForTesting> create(v8::Handle<v8::Context>, PassRefPtr<DOMWrapperWorld>);
+
+    virtual ExecutionContext* executionContext() const OVERRIDE;
+    virtual void setExecutionContext(PassRefPtr<ExecutionContext>) OVERRIDE;
+
+private:
+    ScriptStateForTesting(v8::Handle<v8::Context>, PassRefPtr<DOMWrapperWorld>);
+
+    RefPtr<ExecutionContext> m_executionContext;
+};
+
 // ScriptStateProtectingContext keeps the context associated with the ScriptState alive.
 // You need to call clear() once you no longer need the context. Otherwise, the context will leak.
 class ScriptStateProtectingContext {
     WTF_MAKE_NONCOPYABLE(ScriptStateProtectingContext);
 public:
     ScriptStateProtectingContext(ScriptState* scriptState)
         : m_scriptState(scriptState)
     {
         if (m_scriptState)
             m_context.set(m_scriptState->isolate(), m_scriptState->context());
     }
 
     ScriptState* operator->() const { return m_scriptState.get(); }
     ScriptState* get() const { return m_scriptState.get(); }
     void clear()
     {
         m_scriptState = nullptr;
         m_context.clear();
     }
 
 private:
     RefPtr<ScriptState> m_scriptState;
     ScopedPersistent<v8::Context> m_context;
 };
 
 }
 
 #endif // ScriptState_h