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

webrtc/common_audio/signal_processing/min_max_operations_neon.c

Index: webrtc/common_audio/signal_processing/min_max_operations_neon.c
diff --git a/webrtc/common_audio/signal_processing/min_max_operations_neon.c b/webrtc/common_audio/signal_processing/min_max_operations_neon.c
index e4b3041e3fa9de51cb409d8bb27540510a2d9e3b..ee8bef1a9c2294691876fcee8169cc80b82a6bfe 100644
--- a/webrtc/common_audio/signal_processing/min_max_operations_neon.c
+++ b/webrtc/common_audio/signal_processing/min_max_operations_neon.c
@@ -14,15 +14,15 @@
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 
 // Maximum absolute value of word16 vector. C version for generic platforms.
-int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, int length) {
+int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, size_t length) {
   int absolute = 0, maximum = 0;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return -1;
   }
 
   const int16_t* p_start = vector;
-  int rest = length & 7;
+  size_t rest = length & 7;
   const int16_t* p_end = vector + length - rest;
 
   int16x8_t v;
@@ -69,15 +69,15 @@ int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, int length) {
 
 // Maximum absolute value of word32 vector. NEON intrinsics version for
 // ARM 32-bit/64-bit platforms.
-int32_t WebRtcSpl_MaxAbsValueW32Neon(const int32_t* vector, int length) {
+int32_t WebRtcSpl_MaxAbsValueW32Neon(const int32_t* vector, size_t length) {
   // Use uint32_t for the local variables, to accommodate the return value
   // of abs(0x80000000), which is 0x80000000.
 
   uint32_t absolute = 0, maximum = 0;
-  int i = 0;
-  int residual = length & 0x7;
+  size_t i = 0;
+  size_t residual = length & 0x7;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return -1;
   }
 
@@ -126,12 +126,12 @@ int32_t WebRtcSpl_MaxAbsValueW32Neon(const int32_t* vector, int length) {
 
 // Maximum value of word16 vector. NEON intrinsics version for
 // ARM 32-bit/64-bit platforms.
-int16_t WebRtcSpl_MaxValueW16Neon(const int16_t* vector, int length) {
+int16_t WebRtcSpl_MaxValueW16Neon(const int16_t* vector, size_t length) {
   int16_t maximum = WEBRTC_SPL_WORD16_MIN;
-  int i = 0;
-  int residual = length & 0x7;
+  size_t i = 0;
+  size_t residual = length & 0x7;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return maximum;
   }
 
@@ -166,12 +166,12 @@ int16_t WebRtcSpl_MaxValueW16Neon(const int16_t* vector, int length) {
 
 // Maximum value of word32 vector. NEON intrinsics version for
 // ARM 32-bit/64-bit platforms.
-int32_t WebRtcSpl_MaxValueW32Neon(const int32_t* vector, int length) {
+int32_t WebRtcSpl_MaxValueW32Neon(const int32_t* vector, size_t length) {
   int32_t maximum = WEBRTC_SPL_WORD32_MIN;
-  int i = 0;
-  int residual = length & 0x7;
+  size_t i = 0;
+  size_t residual = length & 0x7;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return maximum;
   }
 
@@ -210,12 +210,12 @@ int32_t WebRtcSpl_MaxValueW32Neon(const int32_t* vector, int length) {
 
 // Minimum value of word16 vector. NEON intrinsics version for
 // ARM 32-bit/64-bit platforms.
-int16_t WebRtcSpl_MinValueW16Neon(const int16_t* vector, int length) {
+int16_t WebRtcSpl_MinValueW16Neon(const int16_t* vector, size_t length) {
   int16_t minimum = WEBRTC_SPL_WORD16_MAX;
-  int i = 0;
-  int residual = length & 0x7;
+  size_t i = 0;
+  size_t residual = length & 0x7;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return minimum;
   }
 
@@ -250,12 +250,12 @@ int16_t WebRtcSpl_MinValueW16Neon(const int16_t* vector, int length) {
 
 // Minimum value of word32 vector. NEON intrinsics version for
 // ARM 32-bit/64-bit platforms.
-int32_t WebRtcSpl_MinValueW32Neon(const int32_t* vector, int length) {
+int32_t WebRtcSpl_MinValueW32Neon(const int32_t* vector, size_t length) {
   int32_t minimum = WEBRTC_SPL_WORD32_MAX;
-  int i = 0;
-  int residual = length & 0x7;
+  size_t i = 0;
+  size_t residual = length & 0x7;
 
-  if (vector == NULL || length <= 0) {
+  if (vector == NULL || length == 0) {
     return minimum;
   }