linux_aura: Turn aura on on the builders.

This widens some suppressions from windows to linux, and suppresses some memory errors in third party libraries that we now use.

BUG=125106,303342
R=cpu@chromium.org, mseaborn@chromium.org

Review URL: https://codereview.chromium.org/25120002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227210 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227210