Adding more targeted trigger dimensions.

Bug: 758630
Change-Id: I6cfe03cb7f2fd2d210ee370554af4044a10cfb59
Reviewed-on: https://chromium-review.googlesource.com/973183Reviewed-by: Ashley Enstad <ashleymarie@chromium.org>
Commit-Queue: Emily Hanley <eyaich@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544715}

testing/buildbot/chromium.perf.fyi.json

@@ -424,6 +424,8 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
+              "gpu": "8086:1626",
+              "os": "Mac-10.12",
               "pool": "Chrome-perf-fyi"
             }
           ],
@@ -503,6 +505,7 @@
           "can_use_on_swarming_builders": true,
           "dimension_sets": [
             {
+              "os": "Linux",
               "pool": "Chrome-perf-fyi"
             }
           ],

tools/perf/core/perf_data_generator.py

@@ -1059,6 +1059,10 @@ NEW_PERF_RECIPE_FYI_TESTERS = {
     'One Buildbot Step Test Builder': {
       'isolate': 'telemetry_perf_tests_experimental',
       'platform': 'linux',
+      'dimension': {
+        'pool': 'Chrome-perf-fyi',
+        'os': 'Linux',
+      },
       'testing': True,
       'device_ids': [
           'swarm823-c4',
@@ -1069,6 +1073,11 @@ NEW_PERF_RECIPE_FYI_TESTERS = {
     'Mac 10.12 Laptop Low End': {
       'isolate': 'performance_test_suite',
       'platform': 'mac',
+      'dimension': {
+        'pool': 'Chrome-perf-fyi',
+        'os': 'Mac-10.12',
+        'gpu': '8086:1626'
+      },
       'device_ids': [
           'build195-a9', 'build196-a9', 'build197-a9', 'build198-a9',
           'build199-a9', 'build200-a9', 'build201-a9', 'build202-a9',
@@ -1158,9 +1167,7 @@ def generate_performance_test_suite(tester_config):
     'ignore_task_failure': False,
     'io_timeout': 30 * 60, # 30 minutes
     'dimension_sets': [
-      {
-        'pool': 'Chrome-perf-fyi',
-      }
+      tester_config['dimension']
     ],
     'upload_test_results': True,
     'shards': shards,