[Chromecast] Reference internal services manifest.

chromecast/browser/cast_content_browser_manifest_overlay.json

 {
+  "name": "content_browser",
+  "display_name": "Cast Shell (Browser)",
   "interface_provider_specs": {
     "service_manager:connector": {
       "provides": {
         "renderer": [
           "chromecast::media::mojom::MediaCaps"
         ]
       }
     },
     // TODO(alokp): Move these to cast-service manifest when ready.
     // crbug.com/663067
     "navigation:frame": {
       "provides": {
         "renderer": [
           "chromecast::receiver::mojom::ApplicationChannelFactory",
           "chromecast::receiver::mojom::ApplicationMetricsRecorder",
           "chromecast::shell::mojom::CastCrypto",
           "chromecast::shell::mojom::Hdmi"
         ]
       }
     }
   }
 }