Bug 1281004: add suite and flavor for web platform tests; r=armenzg

MozReview-Commit-ID: Es0PM38OCTP

--HG--
extra : rebase_source : d7c5fa13bbb4c34556e5746c424c74eb0111876c
extra : source : 13dd3d7699437ad63ee054b3d933c1d82dd18cd4

taskcluster/ci/legacy/tasks/tests/fx_linux64_web_platform_tests_e10s.yml

@@ -22,6 +22,9 @@ task:
     name: '[TC] Linux64 web-platform-tests-e10s-{{chunk}}'
     description: Web platform e10s tests run {{chunk}}
   extra:
+    suite:
+      name: web-platform-tests
+      flavor: web-platform-tests-e10s
     chunks:
       total: 12
     treeherder:

taskcluster/ci/legacy/tasks/tests/fx_linux64_web_platform_tests_reftests_e10s.yml

@@ -21,7 +21,7 @@ task:
   extra:
     suite:
       name: web-platform-tests-reftests
-      flavor: web-platform-tests-reftests
+      flavor: web-platform-tests-reftests-e10s
     treeherder:
       groupName: Desktop web-platform-tests
       groupSymbol: tc-W-e10s