Make ScriptController inherit LocalWindowProxyManager

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

Index: third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
index b750f2657faee14354032ea38feadde1dac1085d..76e5c9e00df5b2032b14bb9ce3b0b865acb1fccd 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
@@ -122,6 +122,8 @@ v8::Local<v8::Object> WindowProxy::releaseGlobal() {
 }
 
 void WindowProxy::setGlobal(v8::Local<v8::Object> global) {
+  DCHECK(m_lifecycle == Lifecycle::ContextUninitialized);
+
   m_globalProxy.set(m_isolate, global);
 
   // Initialize the window proxy now, to re-establish the connection between