Proper disabling LocalNTPInterceptionWebRequestAPITest test

Disable LocalNTPInterceptionWebRequestAPITest.OneGoogleBarRequestsHidden when
run in servicified network stack but not otherwise. Flakes are caused due to a
bug in the servicified network stack, the test seems to work well on other
platforms.

Bug: 853118
Cq-Include-Trybots: luci.chromium.try:linux_mojo
Change-Id: I02bf111449dd88c24c788d630e8e53f364e03265
Reviewed-on: https://chromium-review.googlesource.com/1123822Reviewed-by: Dominic Battré <battre@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Commit-Queue: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572278}

chrome/browser/extensions/api/web_request/web_request_apitest.cc

@@ -1605,14 +1605,8 @@ class LocalNTPInterceptionWebRequestAPITest
   DISALLOW_COPY_AND_ASSIGN(LocalNTPInterceptionWebRequestAPITest);
 };
 
-// Flaky on Win7x64 and Linux. See https://crbug.com/853118.
-#if defined(OS_WIN) || defined(OS_LINUX)
-#define MAYBE_OneGoogleBarRequestsHidden DISABLED_OneGoogleBarRequestsHidden
-#else
-#define MAYBE_OneGoogleBarRequestsHidden OneGoogleBarRequestsHidden
-#endif
 IN_PROC_BROWSER_TEST_F(LocalNTPInterceptionWebRequestAPITest,
-                       MAYBE_OneGoogleBarRequestsHidden) {
+                       OneGoogleBarRequestsHidden) {
   // Loads an extension which tries to intercept requests to the OneGoogleBar.
   ExtensionTestMessageListener listener("ready", true /*will_reply*/);
   const Extension* extension =

testing/buildbot/filters/mojo.fyi.network_browser_tests.filter

@@ -265,6 +265,8 @@
 -ExtensionWebRequestApiTest.WebRequestTestOSDD
 # Note WebRequestUnloadImmediately is disabled on Linux
 -ExtensionWebRequestApiTest.WebRequestUnloadImmediately
+# http://crbug.com/853118 Flaky with serivicified network stack.
+-LocalNTPInterceptionWebRequestAPITest.OneGoogleBarRequestsHidden
 
 # WebRequest implementation needs to handle extension
 # installation/uninstallation events.