Special-case LocalDOMWindow for same-origin access in bindings.

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

Index: third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
diff --git a/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp b/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
index da76ba78d623c0e4eed0bfba26b55273909777ca..65bae0f56e27f0d04e39ff5969e6a52dca2339dc 100644
--- a/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
+++ b/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
@@ -53,6 +53,7 @@
 #include "core/frame/BarProp.h"
 #include "core/frame/DOMVisualViewport.h"
 #include "core/frame/EventHandlerRegistry.h"
+#include "core/frame/External.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/History.h"
@@ -1380,6 +1381,19 @@ CustomElementRegistry* LocalDOMWindow::maybeCustomElements() const {
   return m_customElements;
 }
 
+External* LocalDOMWindow::external() const {
+  DEFINE_STATIC_LOCAL(Persistent<External>, external, (new External));
+  return external;
+}
+
+bool LocalDOMWindow::isSecureContext() const {
+  if (!frame())
+    return false;
+
+  return document()->isSecureContext(
+      ExecutionContext::StandardSecureContextCheck);
+}
+
 void LocalDOMWindow::addedEventListener(
     const AtomicString& eventType,
     RegisteredEventListener& registeredListener) {