The presubmit check complained about long lines in .grd files. This isn't a useful warning since .grd files aren't really source files.

The problem was that callers were passing in a file filter to InputApi.AffectedFiles but it was being ignored. Fix was to use the passed in file filter.

BUG=None
TEST=Ran on a local change and verified that I no longer got long line warnings on .grd files.
Review URL: http://codereview.chromium.org/6932060

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@85148 0039d316-1c4b-4281-b951-d872f2087c98