Disable two new plugin tests on Mac valgrind
Disable two new plugin tests on Mac valgrind

NPAPI tests aren't currently runable under valgrind on the Mac.

TBR=atwilson

BUG=30661
TEST=Greener valgrind bots

Review URL: http://codereview.chromium.org/3400021

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@60316 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser