Suppresses the invalid read in MessageLoopTest_FileDescriptorWatcherOutlivesMessageLoop_Test::TestBody().
Suppresses the invalid read in MessageLoopTest_FileDescriptorWatcherOutlivesMessageLoop_Test::TestBody().

TBR=jhawkins
BUG=44975
TEST=make the "Linux Tests (valgrind)(2)" bot green.
Review URL: http://codereview.chromium.org/2170004

git-svn-id: http://src.chromium.org/svn/trunk/src@48136 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b4e3247641d23b3a4312c018bd7ac32b61968ddc
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser