Set update gclient config with override deps.

scripts/slave/recipe_modules/auto_bisect/example.expected/basic.json

 [
   {
     "cmd": [
       "git",
       "update-ref",
       "refs/heads/master",
       "refs/remotes/origin/master"
     ],
     "cwd": "[TMP_BASE]/fake_checkout_tmp_1",
     "name": "git update-ref"
@@ skipping 242 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases",
             "metric": "mean_input_event_latency/mean_input_event_latency",
             "repeat_count": 5,
             "test_type": "perf"
           },
+          "deps_revision_overrides": {},
           "job_name": "a6298e4afedbf2cd461755ea6f45b0ad64222222-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_a6298e4afedbf2cd461755ea6f45b0ad64222222.zip",
           "parent_got_revision": "a6298e4afedbf2cd461755ea6f45b0ad64222222",
           "revision": "a6298e4afedbf2cd461755ea6f45b0ad64222222",
           "revision_ladder": {
             "chromium": "a6298e4afedbf2cd461755ea6f45b0ad64222222"
           }
         }
       }
     ]
@@ skipping 60 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases",
             "metric": "mean_input_event_latency/mean_input_event_latency",
             "repeat_count": 5,
             "test_type": "perf"
           },
+          "deps_revision_overrides": {},
           "job_name": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111.zip",
           "parent_got_revision": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
           "revision": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
           "revision_ladder": {
             "chromium": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111"
           }
         }
       }
     ]
@@ skipping 98 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases",
             "metric": "mean_input_event_latency/mean_input_event_latency",
             "repeat_count": 5,
             "test_type": "perf"
           },
+          "deps_revision_overrides": {},
           "job_name": "dcdcdc0ff1122212323134879ddceeb1240b0988-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_dcdcdc0ff1122212323134879ddceeb1240b0988.zip",
           "parent_got_revision": "dcdcdc0ff1122212323134879ddceeb1240b0988",
           "revision": "dcdcdc0ff1122212323134879ddceeb1240b0988",
           "revision_ladder": {
             "chromium": "dcdcdc0ff1122212323134879ddceeb1240b0988"
           }
         }
       }
     ]
@@ skipping 570 matching lines @@
       "{\"bisect_config\": {\"bad_revision\": \"314017\", \"bug_id\": \"-1\", \"builder_host\": \"master4.golo.chromium.org\", \"builder_port\": \"8341\", \"bypass_stats_check\": \"True\", \"command\": \"src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases\", \"dummy_builds\": \"True\", \"dummy_job_names\": \"True\", \"dummy_tests\": \"True\", \"good_revision\": \"314015\", \"gs_bucket\": \"chrome-perf\", \"max_time_minutes\": \"5\", \"metric\": \"mean_input_event_latency/mean_input_event_latency\", \"recipe_tester_name\": \"linux_perf_tester\", \"repeat_count\": \"2\", \"skip_gclient_ops\": \"True\", \"test_type\": \"perf\"}, \"buildername\": \"linux_perf_bisect\", \"buildnumber\": 123456, \"mastername\": \"tryserver.chromium.perf\", \"recipe\": \"auto_bisect:example\", \"slavename\": \"dummyslave\"}"
     ],
     "name": "Running Bisection"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]