Update from https://crrev.com/305340

testing/buildbot/chromium.fyi.json

Index: testing/buildbot/chromium.fyi.json
diff --git a/testing/buildbot/chromium.fyi.json b/testing/buildbot/chromium.fyi.json
index bee8677248e99a644b820dfab065b412ef0d1585..3c54f1b44df75a17f739a0ece9efc0af10452c05 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -353,6 +353,12 @@
       { "test": "content_browsertests", "args": ["--site-per-process", "--gtest_filter=-*.AllowTargetedNavigationsAfterSwap:*.SupportCrossProcessPostMessage:*.DontSwapProcessWithOnlyTargetBlank:*.DisownOpener:*.NavigateWithLeftoverFrames:*.DontPreemptNavigationWithFrameTreeUpdate:*.ProcessExitWithSwappedOutViews:*.SupportCrossProcessPostMessageWithMessagePort:*.AllowTargetedNavigationsInOpenerAfterSwap"] }
     ]
   },
+  "Browser Side Navigation Linux": {
+    "gtest_tests": [
+      { "test": "content_unittests", "args": ["--enable-browser-side-navigation"] },
+      { "test": "content_browsertests", "args": ["--enable-browser-side-navigation"] }
+    ]
+  },
   "Linux ChromeOS MSan Tests": {
     "gtest_tests": [
       "accessibility_unittests",