Fixing NetEqReplacementInput for reordered and missing packets

webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h

Index: webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h
diff --git a/webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h b/webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h
index 07153dbb76bf1eea5b2ce0f84de18ac555d58c90..ee1e4ae66e5de0d7df3b452fba464c42ac5797f9 100644
--- a/webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h
+++ b/webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h
@@ -11,6 +11,7 @@
 #ifndef WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_NETEQ_REPLACEMENT_INPUT_H_
 #define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_NETEQ_REPLACEMENT_INPUT_H_
 
+#include <memory>
 #include <set>
 
 #include "webrtc/modules/audio_coding/neteq/tools/neteq_input.h"
@@ -42,6 +43,7 @@ class NetEqReplacementInput : public NetEqInput {
   const std::set<uint8_t> comfort_noise_types_;
   const std::set<uint8_t> forbidden_types_;
   std::unique_ptr<PacketData> packet_;  // The next packet to deliver.
+  uint32_t last_frame_size_timestamps_ = 960;  // Initial guess: 20 ms @ 48 kHz.
 };
 
 }  // namespace test