Add blink unit tests to the linux/mac/windows builders.

testing/buildbot/chromium.mac.json

Index: testing/buildbot/chromium.mac.json
diff --git a/testing/buildbot/chromium.mac.json b/testing/buildbot/chromium.mac.json
index 4f946b4a636e99802f11e3e06d0c5b60e2eb858b..4ca881b96eefdb447e214a8249f7ea1c73ff4c9c 100644
--- a/testing/buildbot/chromium.mac.json
+++ b/testing/buildbot/chromium.mac.json
@@ -1295,6 +1295,18 @@
       },
       {
         "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "blink_heap_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "blink_platform_unittests"
+      },
+      {
+        "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 10
         },
@@ -1606,6 +1618,18 @@
           "can_use_on_swarming_builders": true
         },
         "test": "views_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "webkit_unit_tests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "wtf_unittests"
       }
     ],
     "isolated_scripts": [