mustash: Enable connections to mus from the Chrome renderer [take 2]

content/browser/mojo/mojo_shell_client_host.h

Index: content/browser/mojo/mojo_shell_client_host.h
diff --git a/content/browser/mojo/mojo_shell_client_host.h b/content/browser/mojo/mojo_shell_client_host.h
index 6f61f71e205fd0d9fe599d27c04e5e5aeaa136e5..c59924fa7473ee59af4a7b1edd07c2b08f9c29f5 100644
--- a/content/browser/mojo/mojo_shell_client_host.h
+++ b/content/browser/mojo/mojo_shell_client_host.h
@@ -15,11 +15,9 @@ class RenderProcessHost;
 
 // Creates a communication channel between the external Mojo shell and the
 // child. The server handle of this channel is shared with the external shell
-// via Mojo IPC and the client handle is shared with the child via Chrome IPC.
-// |child_process_id| is used to uniquify the child in the external shell's
-// instance map.
+// via Mojo IPC. |child_process_id| is used to uniquify the child in the
+// external shell's instance map.
 void RegisterChildWithExternalShell(int child_process_id,
-                                    base::ProcessHandle process_handle,
                                     RenderProcessHost* render_process_host);
 
 // Returns the URL associated with an instance corresponding to the renderer
@@ -28,6 +26,10 @@ void RegisterChildWithExternalShell(int child_process_id,
 std::string GetMojoApplicationInstanceURL(
     RenderProcessHost* render_process_host);
 
+// Shares a client handle to the Mojo Shell with the child via Chrome IPC.
+void SendExternalMojoShellHandleToChild(base::ProcessHandle process_handle,
+                                        RenderProcessHost* render_process_host);
+
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MOJO_MOJO_SHELL_CLIENT_HOST_H_