Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/codecs/ilbc/defines.h

Index: webrtc/modules/audio_coding/codecs/ilbc/defines.h
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/defines.h b/webrtc/modules/audio_coding/codecs/ilbc/defines.h
index 2d37e52650d85e363e29fc5c1d12792bfb03b558..5fcd4a01e48e531c7546cc593d90f1ef46e4d36e 100644
--- a/webrtc/modules/audio_coding/codecs/ilbc/defines.h
+++ b/webrtc/modules/audio_coding/codecs/ilbc/defines.h
@@ -121,11 +121,11 @@ typedef struct iLBC_bits_t_ {
   int16_t lsf[LSF_NSPLIT*LPC_N_MAX];
   int16_t cb_index[CB_NSTAGES*(NASUB_MAX+1)];  /* First CB_NSTAGES values contains extra CB index */
   int16_t gain_index[CB_NSTAGES*(NASUB_MAX+1)]; /* First CB_NSTAGES values contains extra CB gain */
-  int16_t idxForMax;
+  size_t idxForMax;
   int16_t state_first;
   int16_t idxVec[STATE_SHORT_LEN_30MS];
   int16_t firstbits;
-  int16_t startIdx;
+  size_t startIdx;
 } iLBC_bits;
 
 /* type definition encoder instance */
@@ -135,12 +135,12 @@ typedef struct IlbcEncoder_ {
   int16_t mode;
 
   /* basic parameters for different frame sizes */
-  int16_t blockl;
-  int16_t nsub;
+  size_t blockl;
+  size_t nsub;
   int16_t nasub;
-  int16_t no_of_bytes, no_of_words;
+  size_t no_of_bytes, no_of_words;
   int16_t lpc_n;
-  int16_t state_short_len;
+  size_t state_short_len;
 
   /* analysis filter state */
   int16_t anaMem[LPC_FILTERORDER];
@@ -164,7 +164,7 @@ typedef struct IlbcEncoder_ {
   int16_t Nfor_flag;
   int16_t Nback_flag;
   int16_t start_pos;
-  int16_t diff;
+  size_t diff;
 #endif
 
 } IlbcEncoder;
@@ -176,12 +176,12 @@ typedef struct IlbcDecoder_ {
   int16_t mode;
 
   /* basic parameters for different frame sizes */
-  int16_t blockl;
-  int16_t nsub;
+  size_t blockl;
+  size_t nsub;
   int16_t nasub;
-  int16_t no_of_bytes, no_of_words;
+  size_t no_of_bytes, no_of_words;
   int16_t lpc_n;
-  int16_t state_short_len;
+  size_t state_short_len;
 
   /* synthesis filter state */
   int16_t syntMem[LPC_FILTERORDER];
@@ -190,14 +190,15 @@ typedef struct IlbcDecoder_ {
   int16_t lsfdeqold[LPC_FILTERORDER];
 
   /* pitch lag estimated in enhancer and used in PLC */
-  int last_lag;
+  size_t last_lag;
 
   /* PLC state information */
   int consPLICount, prev_enh_pl;
   int16_t perSquare;
 
   int16_t prevScale, prevPLI;
-  int16_t prevLag, prevLpc[LPC_FILTERORDER+1];
+  size_t prevLag;
+  int16_t prevLpc[LPC_FILTERORDER+1];
   int16_t prevResidual[NSUB_MAX*SUBL];
   int16_t seed;