Replicate sandbox flags for OOPIF (Blink part 2)

Source/web/WebRemoteFrameImpl.cpp

Index: Source/web/WebRemoteFrameImpl.cpp
diff --git a/Source/web/WebRemoteFrameImpl.cpp b/Source/web/WebRemoteFrameImpl.cpp
index d06b510b246c92fa65573bebdfc337034905cd59..9a13e670c3d3a448a2a317dd5b60f135829aea7e 100644
--- a/Source/web/WebRemoteFrameImpl.cpp
+++ b/Source/web/WebRemoteFrameImpl.cpp
@@ -798,12 +798,6 @@ WebString WebRemoteFrameImpl::layerTreeAsText(bool showDebugInfo) const
     return WebString();
 }
 
-// FIXME(alexmos): This will go away once the Chromium side is updated to pass sandbox flags.
-WebLocalFrame* WebRemoteFrameImpl::createLocalChild(const WebString& name, WebFrameClient* client)
-{
-    return createLocalChild(name, WebSandboxFlags::None, client);
-}
-
 WebLocalFrame* WebRemoteFrameImpl::createLocalChild(const WebString& name, WebSandboxFlags sandboxFlags, WebFrameClient* client)
 {
     WebLocalFrameImpl* child = toWebLocalFrameImpl(WebLocalFrame::create(client));