Use webrtc name specifier instead of rtc/cricket in modules/audio_coding

WebRTC has unified all namespaces to webrtc, and the rtc:: and cricket::
name specifiers need to be replaced with webrtc::. This was generated using
a combination of clang AST rewriting tools and sed.

This CL was uploaded by git cl split.

Bug: webrtc:42232595
Change-Id: I41a494333ec6720bffb0d9f0489faa99893847ca
No-Iwyu: LSC
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/386720
Auto-Submit: Evan Shrubsole <eshr@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#44395}

modules/audio_coding/neteq/statistics_calculator.cc

diff --git a/modules/audio_coding/neteq/statistics_calculator.cc b/modules/audio_coding/neteq/statistics_calculator.cc
index f292637..69e1460 100644
--- a/modules/audio_coding/neteq/statistics_calculator.cc
+++ b/modules/audio_coding/neteq/statistics_calculator.cc
@@ -286,7 +286,7 @@
     return;
   }
   const int time_step_ms =
-      rtc::CheckedDivExact(static_cast<int>(1000 * num_samples), fs_hz);
+      CheckedDivExact(static_cast<int>(1000 * num_samples), fs_hz);
   delayed_packet_outage_counter_.AdvanceClock(time_step_ms);
   excess_buffer_delay_.AdvanceClock(time_step_ms);
   buffer_full_counter_.AdvanceClock(time_step_ms);