Revert of Revert of Swarm cc_unittests.

testing/buildbot/chromium.win.json

Index: testing/buildbot/chromium.win.json
diff --git a/testing/buildbot/chromium.win.json b/testing/buildbot/chromium.win.json
index a257144c0cb818485b77f631c1ff9089e43d6c83..e958c743bc91f7f7bb957713dece4c066d7b0be9 100644
--- a/testing/buildbot/chromium.win.json
+++ b/testing/buildbot/chromium.win.json
@@ -20,7 +20,12 @@
       },
       "cacheinvalidation_unittests",
       "cast_unittests",
-      "cc_unittests",
+      {
+        "test": "cc_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        }
+      },
       "chromedriver_unittests",
       "chrome_elf_unittests",
       {
@@ -140,7 +145,12 @@
       },
       "cacheinvalidation_unittests",
       "cast_unittests",
-      "cc_unittests",
+      {
+        "test": "cc_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        }
+      },
       "chromedriver_unittests",
       "chrome_elf_unittests",
       {
@@ -270,7 +280,12 @@
       },
       "cacheinvalidation_unittests",
       "cast_unittests",
-      "cc_unittests",
+      {
+        "test": "cc_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        }
+      },
       "chromedriver_unittests",
       "chrome_elf_unittests",
       "components_browsertests",
@@ -408,7 +423,12 @@
       "aura_unittests",
       "cacheinvalidation_unittests",
       "cast_unittests",
-      "cc_unittests",
+      {
+        "test": "cc_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        }
+      },
       "chromedriver_unittests",
       "chrome_elf_unittests",
       "components_browsertests",
@@ -544,7 +564,12 @@
       },
       "cacheinvalidation_unittests",
       "cast_unittests",
-      "cc_unittests",
+      {
+        "test": "cc_unittests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        }
+      },
       "chromedriver_unittests",
       "chrome_elf_unittests",
       {