Making back/forward/refresh keys as reserved key.

The keys in first row are no longer assigned to F1-F10.

BUG=276201
TEST=manually checked that event.preventDefault() can't cancel page refresh.

Review URL: https://chromiumcodereview.appspot.com/23172009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@218656 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed