Devirtualize Frame::domWindow().

third_party/WebKit/Source/core/loader/DocumentLoader.cpp

Index: third_party/WebKit/Source/core/loader/DocumentLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/DocumentLoader.cpp b/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
index cd0ad37635b8179069d1bfc7e22ee43e7f2f4497..978a2c09ffa2331eff081a772169090fc10e3587 100644
--- a/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/DocumentLoader.cpp
@@ -764,8 +764,7 @@ DocumentWriter* DocumentLoader::createWriterFor(
   if (!init.shouldReuseDefaultView())
     frame->setDOMWindow(LocalDOMWindow::create(*frame));
 
-  Document* document =
-      frame->localDOMWindow()->installNewDocument(mimeType, init);
+  Document* document = frame->domWindow()->installNewDocument(mimeType, init);
 
   if (!init.shouldReuseDefaultView())
     frame->page()->chromeClient().installSupplements(*frame);