Convert utility process zip creator IPC to mojo

chrome/browser/chrome_content_utility_manifest_overlay.json

 {
   "name": "content_utility",
   "interface_provider_specs": {
     "service_manager:connector": {
       "provides": {
         "browser": [
           "chrome::mojom::FilePatcher",
           "chrome::mojom::ProfileImport",
           "chrome::mojom::ResourceUsageReporter",
           "chrome::mojom::ShellHandler",
+          "chrome::mojom::ZipFileCreator",

[dcheng, 2017/02/24 19:16:35]

I've been thinking... shouldn't this be in a chromeos specific overlay?

[Noel Gordon, 2017/02/27 02:58:08]

Nope.  Mojo does not have per-os overlays.

And with my mojo developers hat on, I don't think we should add them (nor
per-build-flag overlays either).  Overlays are a developer paint pain, so the
fewer of them, the better imho.

There might be some benefit to your suggestion, which I might be overlooking,
but this is not the right forum to address it ... perhaps send mail to the mojo
list instead.

           "extensions::mojom::MediaParser",
           "extensions::mojom::RemovableStorageWriter",
           "extensions::mojom::WiFiCredentialsGetter",
           "net::interfaces::ProxyResolverFactory",
           "safe_json::mojom::SafeJsonParser"
         ]
       }
     }
   }
 }