NOT YET READY: Improve granularity of window namespaces in Blink.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 07aefd06676f40193fb2648a2981571db64aeae7..9f19e8d703252627b7e9b13578a7c32a896a8d2d 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -3077,6 +3077,11 @@ blink::WebLocalFrame* RenderFrameImpl::CreateChildFrame(
   return web_frame;
 }
 
+blink::WebFrame* RenderFrameImpl::FindFrame(const blink::WebString& name) {
+  return GetContentClient()->renderer()->FindFrame(this->GetWebFrame(),
+                                                   name.Utf8());
+}
+
 void RenderFrameImpl::DidChangeOpener(blink::WebFrame* opener) {
   // Only a local frame should be able to update another frame's opener.
   DCHECK(!opener || opener->IsWebLocalFrame());