Convolver.SIMDVerification has been replaced with two smaller tests.
(https://codereview.chromium.org/178013006/)

Clean up the memcheck and tsan tool filters accordingly.

BUG=134400

Review URL: https://codereview.chromium.org/178993006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@253890 0039d316-1c4b-4281-b951-d872f2087c98
Remove --ash-overview-delay-on-alt-tab

BUG=340466

Review URL: https://codereview.chromium.org/182543003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@253891 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 253891