tools/roll*: use master.tryserver instead of tryserver

BUG=617627
TBR=kjellander@chromium.org

Review-Url: https://codereview.chromium.org/2150963002
Cr-Commit-Position: refs/heads/master@{#405543}

tools/roll_angle.py

@@ -14,21 +14,21 @@ import time
 
 extra_cq_trybots = [
   {
-    "mastername": "tryserver.chromium.win",
+    "mastername": "master.tryserver.chromium.win",
     "buildernames": ["win_optional_gpu_tests_rel"]
   },
   {
-    "mastername": "tryserver.chromium.mac",
+    "mastername": "master.tryserver.chromium.mac",
     "buildernames": ["mac_optional_gpu_tests_rel"]
   },
   {
-    "mastername": "tryserver.chromium.linux",
+    "mastername": "master.tryserver.chromium.linux",
     "buildernames": ["linux_optional_gpu_tests_rel"]
   }
 ]
 extra_fyi_trybots = [
   {
-    "mastername": "tryserver.chromium.win",
+    "mastername": "master.tryserver.chromium.win",
     "buildernames": ["win_clang_dbg"]
   }
 ]

tools/roll_webgl_conformance.py

@@ -14,15 +14,15 @@ import time
 
 extra_trybots = [
   {
-    "mastername": "tryserver.chromium.win",
+    "mastername": "master.tryserver.chromium.win",
     "buildernames": ["win_optional_gpu_tests_rel"]
   },
   {
-    "mastername": "tryserver.chromium.mac",
+    "mastername": "master.tryserver.chromium.mac",
     "buildernames": ["mac_optional_gpu_tests_rel"]
   },
   {
-    "mastername": "tryserver.chromium.linux",
+    "mastername": "master.tryserver.chromium.linux",
     "buildernames": ["linux_optional_gpu_tests_rel"]
   },
 ]

tools/roll_webrtc.py

@@ -37,8 +37,10 @@ TRYJOB_STATUS_SLEEP_SECONDS = 30
 IS_WIN = sys.platform.startswith('win')
 WEBRTC_PATH = os.path.join('third_party', 'webrtc')
 # Run these CQ trybots in addition to the default ones in infra/config/cq.cfg.
-EXTRA_TRYBOTS = ('tryserver.chromium.linux:linux_chromium_archive_rel_ng;'
-                 'tryserver.chromium.mac:mac_chromium_archive_rel_ng')
+EXTRA_TRYBOTS = (
+    'master.tryserver.chromium.linux:linux_chromium_archive_rel_ng;'
+    'master.tryserver.chromium.mac:mac_chromium_archive_rel_ng'
+)
 
 # Result codes from build/third_party/buildbot_8_4p1/buildbot/status/results.py
 # plus the -1 code which is used when there's no result yet.