Removed unused variable.

Not sure how it went unnoticed by the compiler.

Review URL: https://codereview.chromium.org/26341004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227484 0039d316-1c4b-4281-b951-d872f2087c98
base: fix typos in comment

BUG=None
TEST=None

Review URL: https://codereview.chromium.org/26363003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227485 0039d316-1c4b-4281-b951-d872f2087c98
Disable GamepadProviderTest.UserGesture from mac valgrind bots.

This test seems to cause the bot to hang.

NOTRY=true
TBR=sadrul@chromium.org
BUG=303709

Review URL: https://codereview.chromium.org/26382003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227486 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227485
SVN changes up to revision 227486