Set update gclient config with override deps.

scripts/slave/recipes/bisect.expected/basic.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'src', 'url': 'https://chromium.googlesource.com/chromium/src.git'}, {'custom_deps': {'src/chrome/test/data/firefox2_profile/searchplugins': None, 'src/chrome/test/data/firefox2_searchplugins': None, 'src/chrome/test/data/firefox3_profile/searchplugins': None, 'src/chrome/test/data/firefox3_searchplugins': None, 'src/chrome/test/data/osdd': None, 'src/chrome/test/data/perf/frame_rate/private': None, 'src/chrome/test/data/plugin': None, 'src/chrome/test/data/ssl/certs': None, 'src/data/autodiscovery': None, 'src/data/esctf': None, 'src/data/mach_ports': None, 'src/data/memory_test': None, 'src/data/mozilla_js_tests': None, 'src/data/page_cycler': None, 'src/data/selenium_core': None, 'src/data/tab_switching': None, 'src/tools/grit/grit/test/data': None, 'src/webkit/data/bmp_decoder': None, 'src/webkit/data/ico_decoder': None, 'src/webkit/data/test_shell/plugins': None, 'src/webkit/data/xbm_decoder': None}, 'deps_file': '.DEPS.git', 'managed': True, 'name': 'src-internal', 'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git'}, {'deps_file': '.DEPS.git', 'managed': True, 'name': 'catapult', 'url': 'https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git'}]",
       "--patch_root",
       "src",
@@ skipping 470 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "tools/perf/run_benchmark -v --browser=release page_cycler.intl_ar_fa_he",
             "metric": "warm_times/page_load_time",
             "repeat_count": 5,
             "test_type": "perf"
           },
+          "deps_revision_overrides": {},
           "job_name": "e28dc0d49c331def2a3bbf3ddd0096eb51551155-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_e28dc0d49c331def2a3bbf3ddd0096eb51551155.zip",
           "parent_got_revision": "e28dc0d49c331def2a3bbf3ddd0096eb51551155",
           "revision": "e28dc0d49c331def2a3bbf3ddd0096eb51551155",
           "revision_ladder": {
             "chromium": "e28dc0d49c331def2a3bbf3ddd0096eb51551155"
           }
         }
       }
     ],
@@ skipping 73 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "tools/perf/run_benchmark -v --browser=release page_cycler.intl_ar_fa_he",
             "metric": "warm_times/page_load_time",
             "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 179 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "tools/perf/run_benchmark -v --browser=release page_cycler.intl_ar_fa_he",
             "metric": "warm_times/page_load_time",
             "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 181 matching lines @@
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "tools/perf/run_benchmark -v --browser=release page_cycler.intl_ar_fa_he",
             "metric": "warm_times/page_load_time",
             "repeat_count": 5,
             "test_type": "perf"
           },
+          "deps_revision_overrides": {},
           "job_name": "fc6dfc7ff5b1073408499478969261b826441144-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_fc6dfc7ff5b1073408499478969261b826441144.zip",
           "parent_got_revision": "fc6dfc7ff5b1073408499478969261b826441144",
           "revision": "fc6dfc7ff5b1073408499478969261b826441144",
           "revision_ladder": {
             "chromium": "fc6dfc7ff5b1073408499478969261b826441144"
           }
         }
       }
     ],
@@ skipping 161 matching lines @@
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]