Update a ton of audio code to use size_t more correctly and in general reduce

webrtc/modules/audio_coding/codecs/ilbc/ilbc.c

Index: webrtc/modules/audio_coding/codecs/ilbc/ilbc.c
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/ilbc.c b/webrtc/modules/audio_coding/codecs/ilbc/ilbc.c
index e41c095f82ead8a27b66be54251150500c5c5f18..c565a246dbc5cebc291abfe0b90e124536b473c3 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/ilbc.c
+++ b/webrtc/modules/audio_coding/codecs/ilbc/ilbc.c
@@ -90,10 +90,10 @@ int16_t WebRtcIlbcfix_EncoderInit(IlbcEncoderInstance* iLBCenc_inst,
 
 int WebRtcIlbcfix_Encode(IlbcEncoderInstance* iLBCenc_inst,
                          const int16_t* speechIn,
-                         int16_t len,
+                         size_t len,
                          uint8_t* encoded) {
-  int16_t pos = 0;
-  int16_t encpos = 0;
+  size_t pos = 0;
+  size_t encpos = 0;
 
   if ((len != ((IlbcEncoder*)iLBCenc_inst)->blockl) &&
 #ifdef SPLIT_10MS
@@ -118,7 +118,7 @@ int WebRtcIlbcfix_Encode(IlbcEncoderInstance* iLBCenc_inst,
 #endif
       encpos += ((IlbcEncoder*)iLBCenc_inst)->no_of_words;
     }
-    return (encpos*2);
+    return (int)(encpos*2);
   }
 }
 
@@ -143,11 +143,11 @@ int16_t WebRtcIlbcfix_Decoderinit30Ms(IlbcDecoderInstance *iLBCdec_inst) {
 
 int WebRtcIlbcfix_Decode(IlbcDecoderInstance* iLBCdec_inst,
                          const uint8_t* encoded,
-                         int16_t len,
+                         size_t len,
                          int16_t* decoded,
                          int16_t* speechType)
 {
-  int i=0;
+  size_t i=0;
   /* Allow for automatic switching between the frame sizes
      (although you do get some discontinuity) */
   if ((len==((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)||
@@ -191,16 +191,16 @@ int WebRtcIlbcfix_Decode(IlbcDecoderInstance* iLBCdec_inst,
   }
   /* iLBC does not support VAD/CNG yet */
   *speechType=1;
-  return(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
+  return (int)(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
 }
 
 int WebRtcIlbcfix_Decode20Ms(IlbcDecoderInstance* iLBCdec_inst,
                              const uint8_t* encoded,
-                             int16_t len,
+                             size_t len,
                              int16_t* decoded,
                              int16_t* speechType)
 {
-  int i=0;
+  size_t i=0;
   if ((len==((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)||
       (len==2*((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)||
       (len==3*((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)) {
@@ -219,16 +219,16 @@ int WebRtcIlbcfix_Decode20Ms(IlbcDecoderInstance* iLBCdec_inst,
   }
   /* iLBC does not support VAD/CNG yet */
   *speechType=1;
-  return(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
+  return (int)(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
 }
 
 int WebRtcIlbcfix_Decode30Ms(IlbcDecoderInstance* iLBCdec_inst,
                              const uint8_t* encoded,
-                             int16_t len,
+                             size_t len,
                              int16_t* decoded,
                              int16_t* speechType)
 {
-  int i=0;
+  size_t i=0;
   if ((len==((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)||
       (len==2*((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)||
       (len==3*((IlbcDecoder*)iLBCdec_inst)->no_of_bytes)) {
@@ -247,13 +247,13 @@ int WebRtcIlbcfix_Decode30Ms(IlbcDecoderInstance* iLBCdec_inst,
   }
   /* iLBC does not support VAD/CNG yet */
   *speechType=1;
-  return(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
+  return (int)(i*((IlbcDecoder*)iLBCdec_inst)->blockl);
 }
 
-int16_t WebRtcIlbcfix_DecodePlc(IlbcDecoderInstance* iLBCdec_inst,
-                                int16_t* decoded,
-                                int16_t noOfLostFrames) {
-  int i;
+size_t WebRtcIlbcfix_DecodePlc(IlbcDecoderInstance* iLBCdec_inst,
+                               int16_t* decoded,
+                               size_t noOfLostFrames) {
+  size_t i;
   uint16_t dummy;
 
   for (i=0;i<noOfLostFrames;i++) {
@@ -265,9 +265,9 @@ int16_t WebRtcIlbcfix_DecodePlc(IlbcDecoderInstance* iLBCdec_inst,
   return (noOfLostFrames*((IlbcDecoder*)iLBCdec_inst)->blockl);
 }
 
-int16_t WebRtcIlbcfix_NetEqPlc(IlbcDecoderInstance* iLBCdec_inst,
-                               int16_t* decoded,
-                               int16_t noOfLostFrames) {
+size_t WebRtcIlbcfix_NetEqPlc(IlbcDecoderInstance* iLBCdec_inst,
+                              int16_t* decoded,
+                              size_t noOfLostFrames) {
   /* Two input parameters not used, but needed for function pointers in NetEQ */
   (void)(decoded = NULL);
   (void)(noOfLostFrames = 0);