drive: Add EntryUpdatePerformer

EntryUpdatePerformer is a simple class which is responsible to request UpdateResource to the server.

BUG=260538
TEST=unit_tests

Review URL: https://codereview.chromium.org/90893002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237579 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237579