Media Capture Depth Stream Extensions API: focal length and depth range.

content/browser/renderer_host/media/video_capture_manager.h

Index: content/browser/renderer_host/media/video_capture_manager.h
diff --git a/content/browser/renderer_host/media/video_capture_manager.h b/content/browser/renderer_host/media/video_capture_manager.h
index 3bad7b152eec3d3684cbef086c07acd447fccfa2..c562eb882f850cbf9f4ad19bc1ea392a2f958970 100644
--- a/content/browser/renderer_host/media/video_capture_manager.h
+++ b/content/browser/renderer_host/media/video_capture_manager.h
@@ -172,6 +172,13 @@ class CONTENT_EXPORT VideoCaptureManager : public MediaStreamProvider {
       base::Callback<void(const media::VideoCaptureDeviceDescriptors&)>;
   void EnumerateDevices(const EnumerationCallback& client_callback);
 
+  // Retrieves camera calibration information for a particular device. Returns
+  // nullopt_t if the |device_id| is not found or camera calibration information
+  // is not available for the device.  Camera calibration is cached during
+  // device(s) enumeration.
+  base::Optional<CameraCalibration> GetCameraCalibration(
+      const std::string& device_id);
+
  private:
   class CaptureDeviceStartRequest;
   struct DeviceEntry;