Roll tools/swarming_client/ to b10edf25ef55f950bba299ad0f3cd667279a2d13.

$ git log dbff01c15..b10edf25e --date=short --format='%ad %ae %s' | sed 's/@chromium\.org//'
2014-12-11 maruel Remove FileSystem; it's not used anymore even by tests.
2014-12-11 maruel Overhaul tests to stop using FileSystem in isolateserver.py.
2014-12-10 maruel Fix regression in 012067b422; exception bc 2 report_on_exception_exit() calls
2014-12-10 maruel Add coherent automatic https:// prefix to server flags.
2014-12-10 maruel Remove last remnant of support for --indir.
2014-12-09 maruel Get rid of tests/run_isolated/ and create a in-process isolate server mock.
2014-12-08 maruel Remove --isolated from run_isolated.py.

R=vadimsh@chromium.org
BUG=

Review URL: https://codereview.chromium.org/794903006

Cr-Commit-Position: refs/heads/master@{#308202}

DEPS

@@ -56,7 +56,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client
   # and whatever else without interference from each other.
-  'swarming_revision': 'dbff01c15252107603928c32f24fafca48b57a30',
+  'swarming_revision': 'b10edf25ef55f950bba299ad0f3cd667279a2d13',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.