Remove outgoing interface registry on RPH

content/public/browser/browser_child_process_host.h

Index: content/public/browser/browser_child_process_host.h
diff --git a/content/public/browser/browser_child_process_host.h b/content/public/browser/browser_child_process_host.h
index 2b82b5b4d8c8bcab38c51c27466e143813d65c65..60334a9afa2c4499f1e5c3342c875c032d42dc6a 100644
--- a/content/public/browser/browser_child_process_host.h
+++ b/content/public/browser/browser_child_process_host.h
@@ -25,7 +25,6 @@ class FilePath;
 
 namespace shell {
 class InterfaceProvider;
-class InterfaceRegistry;
 }
 
 namespace content {
@@ -93,10 +92,6 @@ class CONTENT_EXPORT BrowserChildProcessHost : public IPC::Sender {
   // this object.
   virtual void SetHandle(base::ProcessHandle handle) = 0;
 
-  // Returns the shell::InterfaceRegistry the browser process uses to expose
-  // interfaces to the child.
-  virtual shell::InterfaceRegistry* GetInterfaceRegistry() = 0;
-
   // Returns the shell::InterfaceProvider the browser process can use to bind
   // interfaces exposed to it from the child.
   virtual shell::InterfaceProvider* GetRemoteInterfaces() = 0;