Update audio code to use size_t more correctly, webrtc/modules/audio_processing/

webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc

Index: webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
diff --git a/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc b/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
index cef41e964a6c0274ac7b41d4bd4a543650a581f3..ad40c8b3c5fe9653081fb30992839c3e1ed85d14 100644
--- a/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
+++ b/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
@@ -68,7 +68,7 @@ DEFINE_string(out_file,
               "play through aplay immediately.");
 
 // Constant IntelligibilityEnhancer constructor parameters.
-const int kErbResolution = 2;
+const size_t kErbResolution = 2;
 const int kNumChannels = 1;
 
 // void function for gtest
@@ -111,8 +111,9 @@ void void_main(int argc, char* argv[]) {
 
   IntelligibilityEnhancer enh(
       kErbResolution, FLAGS_sample_rate, kNumChannels, FLAGS_clear_type,
-      static_cast<float>(FLAGS_clear_alpha), FLAGS_clear_window, FLAGS_ana_rate,
-      FLAGS_var_rate, FLAGS_gain_limit);
+      static_cast<float>(FLAGS_clear_alpha),
+      static_cast<size_t>(FLAGS_clear_window), FLAGS_ana_rate, FLAGS_var_rate,
+      FLAGS_gain_limit);
 
   // Slice the input into smaller chunks, as the APM would do, and feed them
   // through the enhancer.