AcmReceiver::InsertPacket and NetEq::InsertPacket: Take ArrayView arguments

Instead of separate pointer and size arguments.

Review URL: https://codereview.webrtc.org/1429943004

Cr-Commit-Position: refs/heads/master@{#10606}

webrtc/modules/audio_coding/neteq/include/neteq.h

@@ -147,8 +147,7 @@ class NetEq {
   // the same tick rate as the RTP timestamp of the current payload.
   // Returns 0 on success, -1 on failure.
   virtual int InsertPacket(const WebRtcRTPHeader& rtp_header,
-                           const uint8_t* payload,
-                           size_t length_bytes,
+                           rtc::ArrayView<const uint8_t> payload,
                            uint32_t receive_timestamp) = 0;
 
   // Inserts a sync-packet into packet queue. Sync-packets are decoded to