Reland "Upconvert various types to int.", isac portion.

webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc

Index: webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc
diff --git a/webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc b/webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc
index 7f4272b9a566c57bb480d23ed988454a3645900a..ab7c640eedd326aa24d8c82627906a98de07e41d 100644
--- a/webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc
+++ b/webrtc/modules/audio_coding/codecs/isac/fix/test/kenny.cc
@@ -102,14 +102,15 @@ int main(int argc, char* argv[])
   int i, errtype, h = 0, k, packetLossPercent = 0;
   int16_t CodingMode;
   int16_t bottleneck;
-  int16_t framesize = 30;           /* ms */
+  int framesize = 30;           /* ms */
   int cur_framesmpls, err = 0, lostPackets = 0;
 
   /* Runtime statistics */
   double starttime, runtime, length_file;
 
   int16_t stream_len = 0;
-  int16_t framecnt, declen = 0;
+  int16_t framecnt;
+  int declen = 0;
   int16_t shortdata[FRAMESAMPLES_10ms];
   int16_t decoded[MAX_FRAMESAMPLES];
   uint16_t streamdata[500];
@@ -767,7 +768,7 @@ int main(int argc, char* argv[])
 #else
           declen = -1;
 #endif
-          prevFrameSize = declen/240;
+          prevFrameSize = static_cast<int16_t>(declen / 240);
         }
       }