Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h

Index: webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h
diff --git a/webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h b/webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h
index c8690379c6b79bcad676a73fb8fa4b57f013d9b3..7d45f3f71df7ae31566b9bcf29a35855e4e5bd3d 100644
--- a/webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h
+++ b/webrtc/modules/audio_coding/codecs/g711/include/audio_encoder_pcm.h
@@ -39,8 +39,8 @@ class AudioEncoderPcm : public AudioEncoder {
   int SampleRateHz() const override;
   int NumChannels() const override;
   size_t MaxEncodedBytes() const override;
-  int Num10MsFramesInNextPacket() const override;
-  int Max10MsFramesInAPacket() const override;
+  size_t Num10MsFramesInNextPacket() const override;
+  size_t Max10MsFramesInAPacket() const override;
   int GetTargetBitrate() const override;
   EncodedInfo EncodeInternal(uint32_t rtp_timestamp,
                              const int16_t* audio,
@@ -50,9 +50,9 @@ class AudioEncoderPcm : public AudioEncoder {
  protected:
   AudioEncoderPcm(const Config& config, int sample_rate_hz);
 
-  virtual int16_t EncodeCall(const int16_t* audio,
-                             size_t input_len,
-                             uint8_t* encoded) = 0;
+  virtual size_t EncodeCall(const int16_t* audio,
+                            size_t input_len,
+                            uint8_t* encoded) = 0;
 
   virtual int BytesPerSample() const = 0;
 
@@ -60,7 +60,7 @@ class AudioEncoderPcm : public AudioEncoder {
   const int sample_rate_hz_;
   const int num_channels_;
   const int payload_type_;
-  const int num_10ms_frames_per_packet_;
+  const size_t num_10ms_frames_per_packet_;
   const size_t full_frame_samples_;
   std::vector<int16_t> speech_buffer_;
   uint32_t first_timestamp_in_buffer_;
@@ -76,9 +76,9 @@ class AudioEncoderPcmA final : public AudioEncoderPcm {
       : AudioEncoderPcm(config, kSampleRateHz) {}
 
  protected:
-  int16_t EncodeCall(const int16_t* audio,
-                     size_t input_len,
-                     uint8_t* encoded) override;
+  size_t EncodeCall(const int16_t* audio,
+                    size_t input_len,
+                    uint8_t* encoded) override;
 
   int BytesPerSample() const override;
 
@@ -96,9 +96,9 @@ class AudioEncoderPcmU final : public AudioEncoderPcm {
       : AudioEncoderPcm(config, kSampleRateHz) {}
 
  protected:
-  int16_t EncodeCall(const int16_t* audio,
-                     size_t input_len,
-                     uint8_t* encoded) override;
+  size_t EncodeCall(const int16_t* audio,
+                    size_t input_len,
+                    uint8_t* encoded) override;
 
   int BytesPerSample() const override;