WIP: Entry realm stack in Blink

third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
index 8c526ddc3e6488b4beabc536932930fe04babae6..cd7c0288e9b2cd0f52f23d8891bd4ee16552b93e 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
@@ -725,8 +725,9 @@ LocalDOMWindow* toLocalDOMWindow(v8::Local<v8::Context> context) {
 }
 
 LocalDOMWindow* enteredDOMWindow(v8::Isolate* isolate) {
+  V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
   LocalDOMWindow* window =
-      toLocalDOMWindow(isolate->GetEnteredOrMicrotaskContext());
+      toLocalDOMWindow(toDOMWindow(perIsolateData->entryContext()));
   DCHECK(window);
   return window;
 }