Bug 1503299 - Run Android 7.0 x86 jsreftests and mochitest-gpu as tier 1; r=me,a=test-only

taskcluster/ci/test/mochitest.yml

@@ -3,10 +3,6 @@ job-defaults:
         by-test-platform:
             android-em-7.0-x86/opt: geckoview-androidTest.apk
             default: null
-    tier:
-        by-test-platform:
-            android-em-7.0-x86/opt: 3
-            default: default
     serviceworker-e10s:
         by-test-platform:
             linux64/debug: both
@@ -216,6 +212,10 @@ mochitest-clipboard:
                     - --test-suite=mochitest-plain-clipboard
                 default:
                     - --mochitest-suite=plain-clipboard,chrome-clipboard,browser-chrome-clipboard
+    tier:
+        by-test-platform:
+            android-em-7.0-x86/opt: 3
+            default: default
 
 mochitest-devtools-chrome:
     description: "Mochitest devtools-chrome run"

taskcluster/ci/test/reftest.yml

@@ -3,10 +3,6 @@ job-defaults:
         by-test-platform:
             android-em-7.0-x86/opt: geckoview-androidTest.apk
             default: null
-    tier:
-        by-test-platform:
-            android-em-7.0-x86/opt: 3
-            default: default
     serviceworker-e10s:
         by-test-platform:
             linux64/debug: both
@@ -59,6 +55,10 @@ crashtest:
         by-test-platform:
             android-em.*: 7200
             default: 3600
+    tier:
+        by-test-platform:
+            android-em-7.0-x86/opt: 3
+            default: default
 
 jsreftest:
     description: "JS Reftest run"

taskcluster/taskgraph/transforms/tests.py

@@ -640,7 +640,8 @@ def set_tier(config, tests):
                                          'macosx64-qr/debug',
                                          'android-em-4.3-arm7-api-16/opt',
                                          'android-em-4.3-arm7-api-16/debug',
-                                         'android-em-4.2-x86/opt']:
+                                         'android-em-4.2-x86/opt',
+                                         'android-em-7.0-x86/opt']:
                 test['tier'] = 1
             else:
                 test['tier'] = 2