Suppress yet another stack for the race in VP8
Suppress yet another stack for the race in VP8

E.g. like this:
http://build.chromium.org/buildbot/memory/builders/Linux%20Tests%20(tsan)/builds/6149/steps/memory%20test:%20remoting/logs/stdio
WARNING: Possible data race during read of size 4 at 0x91974F4: {{{
T19 (L{}):
 #0 ??? sconsbuild/Release/libffmpegsumo.so sconsbuild/Release/libffmpegsumo.so
 #1 ThreadSanitizerStartThread ts_valgrind_intercepts.c:609

BUG=57266
TBR=glider
TEST=TSan/Linux should go green
Review URL: http://codereview.chromium.org/3561004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@60930 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser