Provide the DeviceManager service to the renderer directly, no app.

content/browser/mojo/mojo_shell_context.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_context.h"
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/path_service.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 150 matching lines @@
   // the url scheme registry is locked.
   scoped_ptr<mojo::package_manager::PackageManagerImpl> package_manager(
       new mojo::package_manager::PackageManagerImpl(base::FilePath(), nullptr));
   application_manager_.reset(
       new mojo::shell::ApplicationManager(package_manager.Pass()));
 
   application_manager_->set_default_loader(
       scoped_ptr<mojo::shell::ApplicationLoader>(new DefaultApplicationLoader));
 
   StaticApplicationMap apps;
-  GetContentClient()->browser()->RegisterInProcessMojoApplications(&apps);
   if (g_applications_for_test) {
     // Add testing apps to the map, potentially overwriting whatever the
     // browser client registered.
     for (const auto& entry : *g_applications_for_test)
       apps[entry.first] = entry.second;
   }
   for (const auto& entry : apps) {
     application_manager_->SetLoaderForURL(
         scoped_ptr<mojo::shell::ApplicationLoader>(
             new mojo::shell::StaticApplicationLoader(entry.second)),
@@ skipping 60 matching lines @@
                             mojo::shell::GetPermissiveCapabilityFilter()));
   params->SetTarget(mojo::shell::Identity(url, std::string(), filter));
   params->set_services(request.Pass());
   params->set_exposed_services(exposed_services.Pass());
   params->set_on_application_end(base::Bind(&base::DoNothing));
   params->set_connect_callback(callback);
   application_manager_->ConnectToApplication(params.Pass());
 }
 
 }  // namespace content