Ensure WindowProxy reinitialization on navigations if needed.

third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h

Index: third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h
index 5283aa62f914d04c09825afb277e19e50b2aef6f..d3f1dccb6f70548364a9f91b72daa47b364ce5e8 100644
--- a/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h
+++ b/third_party/WebKit/Source/bindings/core/v8/LocalWindowProxy.h
@@ -76,6 +76,12 @@ class LocalWindowProxy final : public WindowProxy {
 
   void setSecurityToken(SecurityOrigin*);
 
+  // Triggers updates of objects that are associated with a Document:
+  // - the activity logger
+  // - the document DOM wrapper
+  // - the security origin
+  void updateDocumentInternal();
+
   // The JavaScript wrapper for the document object is cached on the global
   // object for fast access. UpdateDocumentProperty sets the wrapper
   // for the current document on the global object.