Remove the redundant glossary; remove trailing whitespace.

This should complete the PNaCl-ization of this section.

BUG= none
NOTRY=true

Review URL: https://codereview.chromium.org/27513015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229489 0039d316-1c4b-4281-b951-d872f2087c98
Valgrind: Bump up the parallelism for webkit layout tests.

NOTRY=true
TBR=timurrrr@chromium.org

Review URL: https://codereview.chromium.org/29613002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229490 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229490