Fix inlining of ArrayView<T>

Bug: b/499946633, webrtc:439801349
Change-Id: I28d3e93e85006c6603ba31518337e31e008ab0cd
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/461840
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Auto-Submit: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47328}

api/array_view.h

diff --git a/api/array_view.h b/api/array_view.h
index f93591a..2f5dae9 100644
--- a/api/array_view.h
+++ b/api/array_view.h
@@ -18,8 +18,10 @@
 
 namespace webrtc {
 
-template <typename T, size_t extent = std::dynamic_extent>
-using ArrayView ABSL_DEPRECATE_AND_INLINE() = std::span<T, extent>;
+// A parameter pack of extents is used to ensure that ArrayView<T> inlines to
+// span<T>, but only 0 or 1 extent is supported.
+template <typename T, size_t... extent>
+using ArrayView ABSL_DEPRECATE_AND_INLINE() = std::span<T, extent...>;
 
 template <typename T>
 ABSL_DEPRECATE_AND_INLINE()