Enable swapping a frame back in to its parent process

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index e6ee4cf2a1f398cd19129e468fd44eebe6cad981..7e65136a1d41a4a091c7983d4ec6f71ac457ef71 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -4120,13 +4120,14 @@ bool WebContentsImpl::CreateRenderViewForRenderManager(
 
 bool WebContentsImpl::CreateRenderFrameForRenderManager(
     RenderFrameHost* render_frame_host,
-    int parent_routing_id) {
+    int parent_routing_id,
+    int proxy_routing_id) {
   TRACE_EVENT0("browser,navigation",
                "WebContentsImpl::CreateRenderFrameForRenderManager");
 
   RenderFrameHostImpl* rfh =
       static_cast<RenderFrameHostImpl*>(render_frame_host);
-  if (!rfh->CreateRenderFrame(parent_routing_id))
+  if (!rfh->CreateRenderFrame(parent_routing_id, proxy_routing_id))
     return false;
 
   // TODO(nasko): When RenderWidgetHost is owned by RenderFrameHost, the passed