Convert Top Chrome MD tests to use swarming

testing/buildbot/chromium.gpu.fyi.json

Index: testing/buildbot/chromium.gpu.fyi.json
diff --git a/testing/buildbot/chromium.gpu.fyi.json b/testing/buildbot/chromium.gpu.fyi.json
index b76e38f19b8ffca723acb060996909f37bc2bb1f..696640f2064cdd825def052e19e8fe887a210a5f 100644
--- a/testing/buildbot/chromium.gpu.fyi.json
+++ b/testing/buildbot/chromium.gpu.fyi.json
@@ -476,6 +476,9 @@
           "--gtest_filter=CastStreamingApiTestWithPixelOutput.EndToEnd*:TabCaptureApiPixelTest.EndToEnd*"
         ],
         "name": "tab_capture_end2end_tests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "browser_tests",
         "use_xvfb": false
       },
@@ -896,6 +899,9 @@
           "--gtest_filter=CastStreamingApiTestWithPixelOutput.EndToEnd*:TabCaptureApiPixelTest.EndToEnd*"
         ],
         "name": "tab_capture_end2end_tests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "browser_tests",
         "use_xvfb": false
       },
@@ -2544,6 +2550,9 @@
           "--gtest_filter=CastStreamingApiTestWithPixelOutput.EndToEnd*:TabCaptureApiPixelTest.EndToEnd*"
         ],
         "name": "tab_capture_end2end_tests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "browser_tests",
         "use_xvfb": false
       },