ffmpeg update to june 23 version which fixes mp4 crash on still frames with 3...

ffmpeg update to june 23 version which fixes mp4 crash on still frames with 3 threads
removed vp3 patch, which allows layout tests to pass, but causes small some artifacts on seeks.
BUG=47325
TEST=media_bench --video-threads=3 --fast2 --stream=video still2.mp4

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=50919

[fbarchard, 2010-06-26 01:29:45]

updates to ffmpeg and swscaler to june23 version
ffmpeg is to fix crash on mp4 still frames
removed vp3 patch to pass layout tests
swscaler update is to move toward lgpl version that we could at least consider
using.
TBR=scherkus

[scherkus (not reviewing), 2010-06-28 19:09:19]

LGTM