Drop "ByPath" from functions in drive::FileSystemInterface.

BUG=315416
TBR=benwells@chromium.org

Review URL: https://codereview.chromium.org/59763007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233608 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233608
Revert 233509 "Sync PRESUBMIT.py with what is run on CQ."

This broke git cl try

> Sync PRESUBMIT.py with what is run on CQ.
> 
> This is a repeat of https://chromiumcodereview.appspot.com/11553016/, using the
> New Advanced Technology™ in https://chromiumcodereview.appspot.com/54373011/.
> 
> BUG=278554
> R=maruel@chromium.org
> 
> Review URL: https://codereview.chromium.org/58803002

TBR=stip@chromium.org

Review URL: https://codereview.chromium.org/64473002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233609 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233609