Bug 1750138 - turn on mochitest plain fission for all platforms and variants. r=releng-reviewers,gbrown

Differential Revision: https://phabricator.services.mozilla.com/D135967

taskcluster/ci/config.yml

@@ -47,6 +47,7 @@ treeherder:
         'M-gli': 'Mochitests with WebGL over IPC'
         'M-spi': 'Mochitests with socket process'
         'M-spi-nw': 'Mochitests with networking on socket process'
+        'M-spi-nw-fis': 'Mochitests with networking on socket process with fission enabled'
         'M-spi-nw-1proc': 'Mochitests with networking on socket process without e10s'
         'M-swr': 'Mochitests with software webrender enabled'
         'M-swr-a11y-checks': 'Mochitests with software webrender and accessibility checks enabled'

taskcluster/ci/test/mochitest.yml

@@ -12,7 +12,7 @@ job-defaults:
             default: null
     tier:
         by-variant:
-            fission(-xorigin)?:
+            fission-xorigin:
                 by-test-platform:
                     linux.*64.*-qr/debug: 1
                     default: 2
@@ -53,8 +53,10 @@ mochitest-plain:
         - fission
         - fission-xorigin
         - socketprocess_networking
+        - socketprocess_networking+fission
         - wayland
         - webrender-sw
+        - webrender-sw+fission
     run-on-projects:
         by-variant:
             fission:
@@ -74,6 +76,10 @@ mochitest-plain:
                 by-test-platform:
                     (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(opt|debug): built-projects
                     default: []
+            socketprocess_networking+fission:
+                by-test-platform:
+                    (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
             wayland:
                 by-test-platform:
                     linux1804-64-qr/debug: built-projects
@@ -83,6 +89,10 @@ mochitest-plain:
                     android-em-7.0-x86_64-qr/debug: built-projects
                     linux1804-64-qr/debug: built-projects
                     default: []
+            webrender-sw+fission:
+                by-test-platform:
+                    linux1804-64-qr/debug: built-projects
+                    default: []
             aab:
                 by-test-platform:
                     android-em-7.0-x86_64-qr/debug: built-projects
@@ -468,13 +478,15 @@ mochitest-plain-gpu:
     loopback-video: true
     variants:
         - fission
-        - socketprocess_networking
         - wayland
         - webrender-sw
+        - webrender-sw+fission
     run-on-projects:
         by-variant:
-            fission: []
-            socketprocess_networking: []
+            fission:
+                by-test-platform:
+                    android.*/.*: []
+                    default: built-projects
             wayland:
                 by-test-platform:
                     linux.*64-qr/debug: built-projects
@@ -484,6 +496,10 @@ mochitest-plain-gpu:
                     android-em-7.0-x86_64-qr/debug: built-projects
                     linux.*64-qr/debug: built-projects
                     default: []
+            webrender-sw+fission:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
             default:
                 by-test-platform:
                     .*-tsan-qr/opt: ['trunk']
@@ -491,9 +507,6 @@ mochitest-plain-gpu:
                     default: built-projects
     virtualization: virtual-with-gpu
     tier:
-        by-variant:
-            fission: 2
-            default:
         by-test-platform:
             android-em-7.0-x86_64-qr/debug-isolated-process: 3
             default: default