Enable some SafeBrowsing browser tests on the network service fyi bot.

testing/buildbot/chromium.fyi.json

 {
   "Android Asan Builder Tests (dbg)": {
     "gtest_tests": [
       {
         "args": [
           "--tool=asan"
         ],
         "swarming": {
           "can_use_on_swarming_builders": false
         },
@@ skipping 10908 matching lines @@
           "shards": 4
         }
       }
     ]
   },
   "Mojo Linux": {
     "gtest_tests": [
       {
         "args": [
           "--enable-features=NetworkService",
+          "--test-launcher-filter-file=../../testing/buildbot/filters/mojo.fyi.network_browser_tests.filter"
+        ],
+        "name": "network_service_browser_tests",
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "browser_tests"
+      },
+      {
+        "args": [
+          "--enable-features=NetworkService",
           "--test-launcher-filter-file=../../testing/buildbot/filters/mojo.fyi.network_content_browsertests.filter"
         ],
         "name": "network_service_content_browsertests",
         "swarming": {
           "can_use_on_swarming_builders": true
         },
         "test": "content_browsertests"
       }
     ],
     "isolated_scripts": [
@@ skipping 1575 matching lines @@
       },
       {
         "swarming": {
           "can_use_on_swarming_builders": false
         },
         "test": "zucchini_unittests"
       }
     ]
   }
 }