Fix infinite loop in NaCl CancelableSyncSocket::Send().

Unqualified Send() simply calls itself.  Qualify to fix.  Also
qualifies Close() for future safety.

BUG=none
TEST=audio plays w/ NaCl.

Review URL: https://codereview.chromium.org/36103002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230301 0039d316-1c4b-4281-b951-d872f2087c98
Remove some memcheck suppressions that haven't fired since September.

BUG=11270,11327,11333,12525,18223,18590,20653,43113,46177,69436,75037,181572
NOTRY=true
TBR=glider@chromium.org

Review URL: https://codereview.chromium.org/36353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230302 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230302