Add a instance groups to Connect(), and introduce an Identity struct.

content/browser/mojo/mojo_shell_client_host.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/mojo/mojo_shell_client_host.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 106 matching lines @@
 
   mojo::shell::mojom::PIDReceiverPtr pid_receiver;
   mojo::InterfaceRequest<mojo::shell::mojom::PIDReceiver> request =
       GetProxy(&pid_receiver);
   new PIDSender(render_process_host, std::move(pid_receiver));
 
   mojo::shell::mojom::ShellClientFactoryPtr factory;
   factory.Bind(mojo::InterfacePtrInfo<mojo::shell::mojom::ShellClientFactory>(
       std::move(request_pipe), 0u));
 
-  shell->CreateInstance(std::move(factory), url,
-                        mojo::shell::mojom::kInheritUserID,
+  mojo::shell::mojom::IdentityPtr target(mojo::shell::mojom::Identity::New());
+  target->name = url;
+  target->user_id = mojo::shell::mojom::kInheritUserID;
+  target->instance = "";
+  shell->CreateInstance(std::move(factory), std::move(target),
                         CreateCapabilityFilterForRenderer(),
                         std::move(request), base::Bind(&OnConnectionComplete));
 
   // Store the URL on the RPH so client code can access it later via
   // GetMojoApplicationInstanceURL().
   SetMojoApplicationInstanceURL(render_process_host, url);
 
   return pipe_token;
 }
 
 std::string GetMojoApplicationInstanceURL(
     RenderProcessHost* render_process_host) {
   InstanceURL* instance_url = static_cast<InstanceURL*>(
       render_process_host->GetUserData(kMojoShellInstanceURL));
   return instance_url ? instance_url->get() : std::string();
 }
 
 }  // namespace content