Try to deflake rasterize_and_record_micro

Increase timeout and reduce repeat count

TBR=ernstm,vmpstr

Review URL: https://codereview.chromium.org/185413003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254392 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254392