Convert google_apis_unittests to run exclusively on Swarming

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 2327747bed4c1774aa967ba8b920eb883fa92b63..a38c06452bab1174f3a851f46825830a6b5366b7 100644
--- a/testing/buildbot/chromium.mac.json
+++ b/testing/buildbot/chromium.mac.json
@@ -147,6 +147,9 @@
         "test": "gl_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "google_apis_unittests"
       },
       {
@@ -395,6 +398,9 @@
         "test": "gl_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "google_apis_unittests"
       },
       {
@@ -658,6 +664,9 @@
         "test": "gl_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "google_apis_unittests"
       },
       {
@@ -921,6 +930,9 @@
         "test": "gl_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "google_apis_unittests"
       },
       {
@@ -1184,6 +1196,9 @@
         "test": "gl_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "google_apis_unittests"
       },
       {