gyp: Put back common dependency on api, because the hard_dependency property isn't transitive.

BUG=314916,162530
R=benwells@chromium.org, kalman@chromium.org

Review URL: https://codereview.chromium.org/58543003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233066 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233066