Adopt absl::string_view in modules/audio_processing/

Bug: webrtc:13579
Change-Id: Idb05a64cfd16aed68d40cd427a6b516caa5e2077
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269387
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Commit-Queue: Ali Tofigh <alito@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37800}

modules/audio_processing/test/debug_dump_replayer.h

@@ -12,8 +12,8 @@
 #define MODULES_AUDIO_PROCESSING_TEST_DEBUG_DUMP_REPLAYER_H_
 
 #include <memory>
-#include <string>
 
+#include "absl/strings/string_view.h"
 #include "common_audio/channel_buffer.h"
 #include "modules/audio_processing/include/audio_processing.h"
 #include "rtc_base/ignore_wundef.h"
@@ -31,7 +31,7 @@ class DebugDumpReplayer {
   ~DebugDumpReplayer();
 
   // Set dump file
-  bool SetDumpFile(const std::string& filename);
+  bool SetDumpFile(absl::string_view filename);
 
   // Return next event.
   absl::optional<audioproc::Event> GetNextEvent() const;