[OnionSoup] Move background_sync.mojom from //content to //third_party/WebKit

third_party/WebKit/public/BUILD.gn

 # Copyright 2014 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//tools/grit/grit_rule.gni")
 
 blink_headers_values = exec_script("//build/gypi_to_gn.py",
                                    [ rebase_path("blink_headers.gypi") ],
@@ skipping 163 matching lines @@
     "grit/blink_image_resources.h",
     "blink_image_resources_100_percent.pak",
     "blink_image_resources_200_percent.pak",
   ]
 }
 
 # GYP versions: WebKit/public/blink.gyp:mojo_bindings_mojom,
 # WebKit/public/blink.gyp:mojo_bindings_blink_mojom
 mojom("mojo_bindings") {
   sources = [
+    "platform/modules/background_sync/background_sync.mojom",
     "platform/modules/bluetooth/web_bluetooth.mojom",
     "platform/modules/geolocation/geolocation.mojom",

[michaeln, 2016/05/11 22:30:44]

Drive by question?

This has probably already been discussed plenty times over, but...

The practice of putting interface definition files for external services
utilized by webkit/modules into the webkit corner of the source tree seems odd?
Its easy to imagine some of these services being reused in non-webkit contexts.

Why are the interface files defining a service co-resident with the sources that
import the service rather then the sources that export the service?

For interfaces that are highly specific to blink, it would make sense as 
declaration of an interface that an embedder should provide. But for more
generic/reusable services its odd.

     "platform/modules/imagecapture/image_capture.mojom",
     "platform/modules/notifications/notification.mojom",
     "platform/modules/permissions/permission.mojom",
     "platform/modules/permissions/permission_status.mojom",
+    "platform/modules/serviceworker/service_worker_event_status.mojom",
     "platform/modules/vr/vr_service.mojom",
     "platform/modules/wake_lock/wake_lock_service.mojom",
   ]
   public_deps = [
     ":android_mojo_bindings",
   ]
 }
 
 # GYP version: WebKit/public/blink.gyp:android_mojo_bindings_java
 mojom("android_mojo_bindings") {
   sources = [
     "platform/modules/payments/payment_request.mojom",
   ]
 }
 
 group("generate_mojo_bindings") {
   deps = [
     ":mojo_bindings__generator",
     ":mojo_bindings_blink__generator",
   ]
 }