Video Capture Mojo (1.4a.a): Add service configurator interface

services/video_capture/public/interfaces/BUILD.gn

 # Copyright 2016 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")
 
 mojom("interfaces") {
   sources = [
+    "fake_video_capture_device_factory_configurator.mojom",

[yzshen1, 2016/08/16 17:55:08]

is this used only for test? if yes, please consider moving it to a separate
target with testonly set to true.

[chfremer, 2016/08/16 18:34:40]

Contrary to what the name suggests, the fake device functionality is actually
shipped as part of production builds. I'll keep an eye out for test-only stuff,
though, and consider keeping it in separate interfaces.

[yzshen1, 2016/08/17 16:22:54]

Do you mean the fake device functionality is actually used by some production
features? Or it is just built into the production for convenience?

If it is not used by any production features, we should split it out. It helps
to reduce binary size and minimizes the chance of exposing testing functionality
unintentionally.

WDYT?

     "video_capture_device.mojom",
     "video_capture_device_client.mojom",
     "video_capture_device_factory.mojom",
     "video_capture_format.mojom",
+    "video_capture_service.mojom",
   ]
 
   deps = [
     "//media/mojo/interfaces",
     "//ui/gfx/geometry/mojo",
   ]
 }