Use size_t more consistently for packet/payload lengths.

See design doc at https://docs.google.com/a/chromium.org/document/d/1I6nmE9D_BmCY-IoV6MDPY2V6WYpEI-dg2apWXTfZyUI/edit?usp=sharing for more information.

This CL was reviewed and approved in pieces in the following CLs:
https://webrtc-codereview.appspot.com/24209004/
https://webrtc-codereview.appspot.com/24229004/
https://webrtc-codereview.appspot.com/24259004/
https://webrtc-codereview.appspot.com/25109004/
https://webrtc-codereview.appspot.com/26099004/
https://webrtc-codereview.appspot.com/27069004/
https://webrtc-codereview.appspot.com/27969004/
https://webrtc-codereview.appspot.com/27989004/
https://webrtc-codereview.appspot.com/29009004/
https://webrtc-codereview.appspot.com/30929004/
https://webrtc-codereview.appspot.com/30939004/
https://webrtc-codereview.appspot.com/31999004/
Committing as TBR to the original reviewers.

BUG=chromium:81439
TEST=none
TBR=pthatcher,henrik.lundin,tina.legrand,stefan,tkchin,glaznev,kjellander,perkj,mflodman,henrika,asapersson,niklas.enbom

Review URL: https://webrtc-codereview.appspot.com/23129004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7726 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/video_coding/codecs/test/stats.cc b/webrtc/modules/video_coding/codecs/test/stats.cc
index f6605f9..91a2f3c 100644
--- a/webrtc/modules/video_coding/codecs/test/stats.cc
+++ b/webrtc/modules/video_coding/codecs/test/stats.cc
@@ -15,6 +15,8 @@
 
 #include <algorithm>  // min_element, max_element
 
+#include "webrtc/base/format_macros.h"
+
 namespace webrtc {
 namespace test {
 
@@ -70,11 +72,11 @@
   // Calculate min, max, average and total encoding time
   int total_encoding_time_in_us = 0;
   int total_decoding_time_in_us = 0;
-  int total_encoded_frames_lengths = 0;
-  int total_encoded_key_frames_lengths = 0;
-  int total_encoded_nonkey_frames_lengths = 0;
-  int nbr_keyframes = 0;
-  int nbr_nonkeyframes = 0;
+  size_t total_encoded_frames_lengths = 0;
+  size_t total_encoded_key_frames_lengths = 0;
+  size_t total_encoded_nonkey_frames_lengths = 0;
+  size_t nbr_keyframes = 0;
+  size_t nbr_nonkeyframes = 0;
 
   for (FrameStatisticsIterator it = stats_.begin();
       it != stats_.end(); ++it) {
@@ -141,23 +143,24 @@
   printf("Frame sizes:\n");
   frame = std::min_element(stats_.begin(),
                       stats_.end(), LessForEncodedSize);
-  printf("  Min     : %7d bytes (frame %d)\n",
+  printf("  Min     : %7" PRIuS " bytes (frame %d)\n",
          frame->encoded_frame_length_in_bytes, frame->frame_number);
 
   frame = std::max_element(stats_.begin(),
                       stats_.end(), LessForEncodedSize);
-  printf("  Max     : %7d bytes (frame %d)\n",
+  printf("  Max     : %7" PRIuS " bytes (frame %d)\n",
          frame->encoded_frame_length_in_bytes, frame->frame_number);
 
-  printf("  Average : %7d bytes\n",
-         static_cast<int>(total_encoded_frames_lengths / stats_.size()));
+  printf("  Average : %7" PRIuS " bytes\n",
+         total_encoded_frames_lengths / stats_.size());
   if (nbr_keyframes > 0) {
-    printf("  Average key frame size    : %7d bytes (%d keyframes)\n",
-           total_encoded_key_frames_lengths / nbr_keyframes,
-           nbr_keyframes);
+    printf("  Average key frame size    : %7" PRIuS " bytes (%" PRIuS
+           " keyframes)\n",
+           total_encoded_key_frames_lengths / nbr_keyframes, nbr_keyframes);
   }
   if (nbr_nonkeyframes > 0) {
-    printf("  Average non-key frame size: %7d bytes (%d frames)\n",
+    printf("  Average non-key frame size: %7" PRIuS " bytes (%" PRIuS
+           " frames)\n",
            total_encoded_nonkey_frames_lengths / nbr_nonkeyframes,
            nbr_nonkeyframes);
   }