Fix spelling of (internal) method name UpdateChannelParameters.

Bug: none
Change-Id: I17baa343b144d8619ef4389f137dbe6b91cf7b98
Reviewed-on: https://webrtc-review.googlesource.com/46020
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21830}

modules/video_coding/video_coding_impl.h

@@ -94,7 +94,7 @@ class VideoSender {
   // caps may be updated to a change to a new VideoCodec or allocation mode.
   // The new parameters will be stored as pending EncoderParameters, and the
   // encoder will only be updated on the next frame.
-  void UpdateChannelParemeters(
+  void UpdateChannelParameters(
       VideoBitrateAllocator* bitrate_allocator,
       VideoBitrateAllocationObserver* bitrate_updated_callback);