[OLD ATTEMPT, DO NOT REVIEW] mustash: Enable connections to mus from the Chrome renderer

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 273f864216521154bca581126385875967bd4a02..1eb189a702119a0543363d7cc9f44c40eaed599f 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -534,6 +534,7 @@ WebContentsImpl* WebContentsImpl::CreateWithOpener(
     // bit to true.
     new_contents->is_subframe_ = true;
   }
+
   new_contents->Init(params);
   return new_contents;
 }
@@ -1378,8 +1379,9 @@ void WebContentsImpl::Init(const WebContents::CreateParams& params) {
 #if defined(MOJO_SHELL_CLIENT)
   if (MojoShellConnection::Get() &&
       base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseMusInRenderer)) {
-    view_.reset(new WebContentsViewMus(this, view_.Pass(),
+          switches::kUseMusInRenderer) &&
+      params.mus_window) {
+    view_.reset(new WebContentsViewMus(this, params.mus_window, view_.Pass(),
                                        &render_view_host_delegate_view_));
   }
 #endif