Files required by a service now listed in manifest.

content/public/app/mojo/content_utility_manifest.json

 {
   "name": "content_utility",
   "display_name": "Content (utility process)",
   "interface_provider_specs": {
     "service_manager:connector": {
       "provides": {
         "browser": [
           "IPC::mojom::ChannelBootstrap",
           "service_manager::mojom::ServiceFactory"
         ],
         "service_manager:service_factory": [
           "service_manager::mojom::ServiceFactory"
         ]
       },
       "requires": {
         "device": [
           "device:power_monitor",
           "device:time_zone_monitor"
         ]
       }
     }
+  },
+  "required_files" : {
+    "v8_natives_data" : [
+      {
+        "path": "natives_blob.bin",
+        "platform": "linux"
+      },
+      {
+        "path": "assets/natives_blob.bin",
+        "platform": "android"
+      }
+    ],
+    "v8_snapshot_data" : [{
+      "path": "snapshot_blob.bin",
+      "platform": "linux"
+    }],
+    "v8_snapshot_32_data" : [{
+      "path": "assets/snapshot_blob_32.bin",
+      "platform": "android"
+    }],
+    "v8_snapshot_64_data" : [{
+      "path": "assets/snapshot_blob_64.bin",
+      "platform": "android"
+    }]
   }
 }