VideoCapture: moar VideoCapture renderer-->host messages to mojo, part 3

content/common/video_capture.mojom

 // 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.
 
 module content.mojom;
 
 import "services/video_capture/public/interfaces/video_capture_device_proxy.mojom";
 import "services/video_capture/public/interfaces/video_capture_format.mojom";
 
 struct VideoCaptureParams {
   video_capture.mojom.VideoCaptureFormat requested_format;
   video_capture.mojom.ResolutionChangePolicy resolution_change_policy;
   video_capture.mojom.PowerLineFrequency power_line_frequency;
 };
+
 interface VideoCaptureHost {
   // TODO(mcasas): Migrate the rest of the messages, https://crbug.com/651897.
 
   // Start the |session_id| session with |params|. The video capture will be
   // identified as |device_id|, a new id picked by the renderer process.
   Start(int32 device_id, int32 session_id, VideoCaptureParams params);
 
   // Closes the video capture specified by |device_id|.
   Stop(int32 device_id);
 
   // Pauses the video capture specified by |device_id|.
   Pause(int32 device_id);
 
   // Resume |device_id| video capture, in |session_id| and with |params|.
   Resume(int32 device_id, int32 session_id, VideoCaptureParams params);
 
   // Requests that the video capturer send a frame "soon" (e.g., to resolve
   // picture loss or quality issues).
   RequestRefreshFrame(int32 device_id);
+
+  // Get the formats supported by a device referenced by |session_id|.
+  GetDeviceSupportedFormats(int32 device_id, int32 session_id)
+    => (array<video_capture.mojom.VideoCaptureFormat> formats_supported);
+
+  // Get the format(s) in use by a device referenced by |session_id|.
+  GetDeviceFormatsInUse(int32 device_id, int32 session_id)
+    => (array<video_capture.mojom.VideoCaptureFormat> formats_in_use);
 };