ScriptState::contextIsEmpty shouldn't return true for a context whose global object is detached

Source/bindings/core/v8/ScriptController.cpp

Index: Source/bindings/core/v8/ScriptController.cpp
diff --git a/Source/bindings/core/v8/ScriptController.cpp b/Source/bindings/core/v8/ScriptController.cpp
index 30482004680d0ffe285856ea4f2d91cca0fb404e..28a3e6b7cbf2d0e0bf7103d38d0bc415f5cc9bf1 100644
--- a/Source/bindings/core/v8/ScriptController.cpp
+++ b/Source/bindings/core/v8/ScriptController.cpp
@@ -259,7 +259,7 @@ TextPosition ScriptController::eventHandlerPosition() const
 void ScriptController::bindToWindowObject(LocalFrame* frame, const String& key, NPObject* object)
 {
     ScriptState* scriptState = ScriptState::forMainWorld(frame);
-    if (scriptState->contextIsEmpty())
+    if (scriptState->contextIsValue())
         return;
 
     ScriptState::Scope scope(scriptState);
@@ -368,7 +368,7 @@ static NPObject* createNoScriptObject()
 static NPObject* createScriptObject(LocalFrame* frame, v8::Isolate* isolate)
 {
     ScriptState* scriptState = ScriptState::forMainWorld(frame);
-    if (scriptState->contextIsEmpty())
+    if (scriptState->contextIsValue())
         return createNoScriptObject();
 
     ScriptState::Scope scope(scriptState);
@@ -404,7 +404,7 @@ NPObject* ScriptController::createScriptObjectForPluginElement(HTMLPlugInElement
         return createNoScriptObject();
 
     ScriptState* scriptState = ScriptState::forMainWorld(m_frame);
-    if (scriptState->contextIsEmpty())
+    if (scriptState->contextIsValue())
         return createNoScriptObject();
 
     ScriptState::Scope scope(scriptState);