This is a renamed copy of the r3354 wrapper script existing for WebRTC located
in trunk/tools/valgrind-webrtc/ of WebRTC (with suppressions cleaned).

Using the libyuv_tests.[sh,bat] script, it is possible to run the libyuv
unit tests under memory tools like Valgrind memcheck, Thread Sanitizer and
Address Sanitizer.

Adding this directory to libyuv makes it possible to handle suppressions
entirely in libyuv, instead of depending on manually setting up the WebRTC
wrapper script on the buildbots.
Having this directory in libyuv is identical to the current buildbot setup in
terms of execution, but will make the buildbot code cleaner.

It also makes it convenient for libyuv developers to run memory tests.

Examples:
memcheck: tools/valgrind-libyuv/libyuv_tests.sh -t
out/Debug/libyuv_unittest
tsan: tools/valgrind-libyuv/libyuv_tests.sh --tool=tsan -t
out/Debug/libyuv_unittest
asan: tools/valgrind-libyuv/libyuv_tests.sh --tool=asan -t
out/Debug/libyuv_unittest

BUG=none
TEST=Ran the command lines listed above.
Review URL: https://webrtc-codereview.appspot.com/1023009

git-svn-id: http://libyuv.googlecode.com/svn/trunk@533 16f28f9a-4ce2-e073-06de-1de4eb20be90

git-svn-id: http://libyuv.googlecode.com/svn/trunk@530 16f28f9a-4ce2-e073-06de-1de4eb20be90

git-svn-id: http://libyuv.googlecode.com/svn/trunk@529 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=171
TEST=still builds
Review URL: https://webrtc-codereview.appspot.com/1021008

git-svn-id: http://libyuv.googlecode.com/svn/trunk@528 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=cpu unittest
Review URL: https://webrtc-codereview.appspot.com/1027005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@527 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=173
TEST=ninja -C out\Release
Review URL: https://webrtc-codereview.appspot.com/1027004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@526 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=171
TEST=none
Review URL: https://webrtc-codereview.appspot.com/1025004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@525 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=171
TESTED=unittests on x86 not impacted.
Review URL: https://webrtc-codereview.appspot.com/1022006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@524 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=172
TEST=none
Review URL: https://webrtc-codereview.appspot.com/1020006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@523 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=170
TEST=libyuvTest.TestFourCC and TestCanonicalFourCC
Review URL: https://webrtc-codereview.appspot.com/991006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@522 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=video_common_test added
Review URL: https://webrtc-codereview.appspot.com/1001007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@521 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=168
TESTED=untested
Review URL: https://webrtc-codereview.appspot.com/994006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@520 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/990004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@519 16f28f9a-4ce2-e073-06de-1de4eb20be90

Mark stack as not executable.  Although its tempting to generate code and execute it as an optimization, security says this is a bad thing.
BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/989005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@518 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=186
TEST=Shade
Review URL: https://webrtc-codereview.appspot.com/986004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@517 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=168
TESTED=./libyuv_unittest --gtest_filter=*Shade
Review URL: https://webrtc-codereview.appspot.com/985004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@516 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=168
TEST=TestShade
Review URL: https://webrtc-codereview.appspot.com/971021

git-svn-id: http://libyuv.googlecode.com/svn/trunk@515 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=lint and try bots
Review URL: https://webrtc-codereview.appspot.com/981004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@514 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/974012

git-svn-id: http://libyuv.googlecode.com/svn/trunk@513 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=176
TESTED=*Matrix*
Review URL: https://webrtc-codereview.appspot.com/966033

git-svn-id: http://libyuv.googlecode.com/svn/trunk@512 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=167
TEST=*Sepia
Review URL: https://webrtc-codereview.appspot.com/968014

git-svn-id: http://libyuv.googlecode.com/svn/trunk@511 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=176
TEST=./libyuv_unittest --gtest_filter=**Gray*
Review URL: https://webrtc-codereview.appspot.com/929039

git-svn-id: http://libyuv.googlecode.com/svn/trunk@510 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=167
TESTED=planar test Shade*
Review URL: https://webrtc-codereview.appspot.com/969014

git-svn-id: http://libyuv.googlecode.com/svn/trunk@509 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=167
TEST=./libyuv_unittest --gtest_filter=*Quantize
Review URL: https://webrtc-codereview.appspot.com/972010

git-svn-id: http://libyuv.googlecode.com/svn/trunk@508 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=lint
Review URL: https://webrtc-codereview.appspot.com/964024

git-svn-id: http://libyuv.googlecode.com/svn/trunk@507 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=164
TEST=./libyuv_unittest --gtest_filter=*Atten*
Review URL: https://webrtc-codereview.appspot.com/937031

git-svn-id: http://libyuv.googlecode.com/svn/trunk@506 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=libyuv_unittest --gtest_filter=*ScaleTo1280*
Review URL: https://webrtc-codereview.appspot.com/969011

git-svn-id: http://libyuv.googlecode.com/svn/trunk@505 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=155
TEST=*Scale*
Review URL: https://webrtc-codereview.appspot.com/935022

git-svn-id: http://libyuv.googlecode.com/svn/trunk@504 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=scale_test
Review URL: https://webrtc-codereview.appspot.com/929028

git-svn-id: http://libyuv.googlecode.com/svn/trunk@503 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=155
TEST=sudo LIBYUV_REPEAT=1000 nice --5 ./libyuv_unittest --gtest_filter=*Rotate*
Review URL: https://webrtc-codereview.appspot.com/939029

git-svn-id: http://libyuv.googlecode.com/svn/trunk@502 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=161
TEST=planar test
Review URL: https://webrtc-codereview.appspot.com/971004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@501 16f28f9a-4ce2-e073-06de-1de4eb20be90

check for interpolation of 0 and do a memcpy to avoid touching the row + 1 which may be one past the end of the buffer.
BUG=153
TEST=valgrind
Review URL: https://webrtc-codereview.appspot.com/930026

git-svn-id: http://libyuv.googlecode.com/svn/trunk@500 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=161
TEST=planar test
Review URL: https://webrtc-codereview.appspot.com/939022

git-svn-id: http://libyuv.googlecode.com/svn/trunk@499 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=160
TEST=libyuvTest.ARGBBlend_Unaligned
Review URL: https://webrtc-codereview.appspot.com/935019

git-svn-id: http://libyuv.googlecode.com/svn/trunk@498 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=./libyuv_unittest --gtest_filter=*ARGBScale*
Review URL: https://webrtc-codereview.appspot.com/964017

git-svn-id: http://libyuv.googlecode.com/svn/trunk@497 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=lint
Review URL: https://webrtc-codereview.appspot.com/931013

git-svn-id: http://libyuv.googlecode.com/svn/trunk@496 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/930022

git-svn-id: http://libyuv.googlecode.com/svn/trunk@495 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=./libyuv_unittest --gtest_filter=*ARGBScale*
Review URL: https://webrtc-codereview.appspot.com/964016

git-svn-id: http://libyuv.googlecode.com/svn/trunk@494 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=none
TEST=none
Review URL: https://webrtc-codereview.appspot.com/930020

git-svn-id: http://libyuv.googlecode.com/svn/trunk@493 16f28f9a-4ce2-e073-06de-1de4eb20be90

BUG=156
TEST=./libyuv_unittest --gtest_filter=*ARGBScale*
Review URL: https://webrtc-codereview.appspot.com/930019

git-svn-id: http://libyuv.googlecode.com/svn/trunk@492 16f28f9a-4ce2-e073-06de-1de4eb20be90