commit af612d5e0769571544952cbe55e675748afa9bdd
author perkj@webrtc.org <perkj@webrtc.org> Wed Mar 18 09:51:05 2015
committer perkj@webrtc.org <perkj@webrtc.org> Wed Mar 18 09:51:44 2015
tree 9081ccaed48fc7c58b5076f7c566315593f19760
parent 6dba1ebd14d8cd96e6e56adad868b33fdedecc53

Reland "Make the entry point for VideoFrames to webrtc const ref I420VideoFrame.""

Original cl description:
This removes the none const pointer entry and SwapFrame.
Since frames delivered using VideoSendStream no longer use the external capture module, VideoSendStream will not get an incoming framerate callback. VideoSendStream now uses a rtc::RateTracker.
Also, the video engine must ensure that time stamps are always increasing.

With this, time stamps (ntp, render_time and rtp timestamps ) are checked and set in ViECapturer::OnIncomingCapturedFrame

This cl was previously reverted in https://webrtc-codereview.appspot.com/46549004/.

Patchset 1 contains the original patch after rebase.
Patshet 2 fix webrtc_perf_tests reported in chromium:465306

Note that chromium:465287 is being fixed in https://webrtc-codereview.appspot.com/43829004/

BUG=1128
R=magjed@webrtc.org, mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/47629004

Cr-Commit-Position: refs/heads/master@{#8776}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8776 4adac7df-926f-26a2-2b94-8c16560cd09d