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

content/public/browser/content_browser_client.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 599 matching lines @@
   // Allows to register browser Mojo services exposed through the
   // RenderProcessHost.
   virtual void RegisterRenderProcessMojoServices(ServiceRegistry* registry) {}
 
   // Allows to register browser Mojo services exposed through the
   // FrameMojoShell.
   virtual void RegisterFrameMojoShellServices(
       ServiceRegistry* registry,
       RenderFrameHost* render_frame_host) {}
 
-  using StaticMojoApplicationMap =
-      std::map<GURL, base::Callback<scoped_ptr<mojo::ApplicationDelegate>()>>;
-
-  // Registers Mojo applications to be loaded in the browser process by the
-  // browser's global Mojo shell.
-  virtual void RegisterInProcessMojoApplications(
-      StaticMojoApplicationMap* apps) {}
+  // Allows to register browser Mojo services exposes through the

[Ken Rockot(use gerrit already), 2015/09/28 22:23:14]

nit: exposed

[Reilly Grant (use Gerrit), 2015/09/28 23:32:00]

Done.

+  // RenderFrameHost.
+  virtual void RegisterRenderFrameMojoServices(
+      ServiceRegistry* registry,
+      RenderFrameHost* render_frame_host) {}
 
   using OutOfProcessMojoApplicationMap = std::map<GURL, base::string16>;
 
   // Registers Mojo applications to be loaded out of the browser process, in a
   // sandboxed utility process. The value of each map entry should be the
   // process name to use for the application's host process when launched.
   virtual void RegisterOutOfProcessMojoApplications(
       OutOfProcessMojoApplicationMap* apps) {}
 
   // Registers Mojo applications to be loaded out of the browser process (in
@@ skipping 68 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return nullptr to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_