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

services/video_capture/public/interfaces/video_capture_device_factory.mojom

Index: services/video_capture/public/interfaces/video_capture_device_factory.mojom
diff --git a/services/video_capture/public/interfaces/video_capture_device_factory.mojom b/services/video_capture/public/interfaces/video_capture_device_factory.mojom
index e637142556d5f1f3c0cc0b6ee07ef6342d34161a..4b7aa4ddd7d19300818c0803e0f1ce57ba5a292f 100644
--- a/services/video_capture/public/interfaces/video_capture_device_factory.mojom
+++ b/services/video_capture/public/interfaces/video_capture_device_factory.mojom
@@ -4,7 +4,7 @@
 
 module video_capture.mojom;
 
-import "services/video_capture/public/interfaces/video_capture_device.mojom";
+import "services/video_capture/public/interfaces/video_capture_device_proxy.mojom";
 import "services/video_capture/public/interfaces/video_capture_format.mojom";
 
 enum VideoCaptureApi {
@@ -27,6 +27,12 @@ enum VideoCaptureTransportType {
   OTHER_TRANSPORT
 };
 
+enum DeviceAccessResultCode {
+  NOT_INITIALIZED,
+  SUCCESS,
+  ERROR_DEVICE_NOT_FOUND
+};
+
 struct VideoCaptureDeviceDescriptor {
   string display_name;
   string device_id;
@@ -51,6 +57,8 @@ interface VideoCaptureDeviceFactory {
   GetSupportedFormats(VideoCaptureDeviceDescriptor device_descriptor)
       => (array<VideoCaptureFormat> supported_formats);
 
-  CreateDevice(VideoCaptureDeviceDescriptor device_descriptor,
-               VideoCaptureDevice& device_request);
+  // Provides exclusive access to the device identified by |device_descriptor|.
+  CreateDeviceProxy(VideoCaptureDeviceDescriptor device_descriptor,
+                    VideoCaptureDeviceProxy& proxy_request)
+      => (DeviceAccessResultCode result_code);
 };