WebRTC: Move ensure_goma step to before runhooks step.

scripts/slave/recipes/webrtc/standalone.expected/tryserver_webrtc_win_clang_rel.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]\\resources\\bot_update.py",
       "--master",
       "tryserver.webrtc",
       "--builder",
       "win_clang_rel",
@@ skipping 64 matching lines @@
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\tools\\runit.py",
       "--show-path",
       "python",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\cleanup_temp.py"
     ],
     "name": "cleanup_temp"
   },
   {
-    "cmd": [
-      "python",
-      "-u",
-      "RECIPE_PACKAGE_REPO[depot_tools]\\gclient.py",
-      "runhooks"
-    ],
-    "cwd": "[SLAVE_BUILD]\\src",
-    "env": {
-      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json",
-      "GYP_DEFINES": "clang=1 component=static_library dcheck_always_on=1 fastbuild=1 ffmpeg_branding=Chrome gomadir='[BUILD]\\goma' rtc_use_h264=1 target_arch=ia32 use_goma=1",
-      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
-    },
-    "name": "gclient runhooks"
-  },
-  {
     "cmd": [],
     "name": "ensure_goma"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::cipd]\\resources\\bootstrap.py",
       "--platform",
       "windows-386",
@@ skipping 34 matching lines @@
       "@@@STEP_LOG_LINE@json.output@    {@@@",
       "@@@STEP_LOG_LINE@json.output@      \"instance_id\": \"resolved-instance_id-of-release---------\", @@@",
       "@@@STEP_LOG_LINE@json.output@      \"package\": \"infra_internal/goma/client/windows-amd64\"@@@",
       "@@@STEP_LOG_LINE@json.output@    }@@@",
       "@@@STEP_LOG_LINE@json.output@  ]@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_PACKAGE_REPO[depot_tools]\\gclient.py",
+      "runhooks"
+    ],
+    "cwd": "[SLAVE_BUILD]\\src",
+    "env": {
+      "GOMA_SERVICE_ACCOUNT_JSON_FILE": "C:\\creds\\service_accounts\\service-account-goma-client.json",
+      "GYP_DEFINES": "clang=1 component=static_library dcheck_always_on=1 fastbuild=1 ffmpeg_branding=Chrome gomadir='[CACHE]\\cipd\\goma' rtc_use_h264=1 target_arch=ia32 use_goma=1",
+      "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
+    },
+    "name": "gclient runhooks"
+  },
+  {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "RECIPE_PACKAGE_REPO[build]\\scripts\\slave\\clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]\\src",
       "--output-json",
       "/path/to/tmp/json"
     ],
@@ skipping 49 matching lines @@
       "@@@STEP_LOG_LINE@json.output (invalid)@null@@@",
       "@@@STEP_LOG_END@json.output (invalid)@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]