Fix misspelling "inmediately".

Change-Id: Ica03485ea531c5cc31c4e7a1ee75eed5fa2a9d9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2079845Reviewed-by: Miguel Casas <mcasas@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Wan-Teh Chang <wtc@google.com>
Cr-Commit-Position: refs/heads/master@{#745605}

media/filters/ffmpeg_video_decoder.cc

@@ -290,7 +290,7 @@ void FFmpegVideoDecoder::Reset(base::OnceClosure closure) {
 
   avcodec_flush_buffers(codec_context_.get());
   state_ = kNormal;
-  // PostTask() to avoid calling |closure| inmediately.
+  // PostTask() to avoid calling |closure| immediately.
   base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, std::move(closure));
 }