Fix swarming for content_browsertests and browser_tests on PlzNavigate FYI bot.

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 b310c04ab182fdd4f271be0a6523cae999f38ff2..1bdcc7f0b4fb34e837db4d2e106bd1db97ea99e9 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -867,7 +867,7 @@
       {
         "args": [
           "--enable-browser-side-navigation",
-          "--test-launcher-filter-file=src/testing/buildbot/filters/browser-side-navigation.linux.browser_tests.filter",
+          "--test-launcher-filter-file=../../testing/buildbot/filters/browser-side-navigation.linux.browser_tests.filter",

[scottmg, 2016/09/13 22:35:28]

I guess this'll only work with swarming now? Kinda icky.

[jam, 2016/09/13 23:31:36]

Right. This is how we run content browser tests for site isolation and
plznavigate on linux_chromium_rel_ng already.

           "--test-launcher-retry-limit=6"
         ],
         "swarming": {
@@ -878,7 +878,7 @@
       {
         "args": [
           "--enable-browser-side-navigation",
-          "--test-launcher-filter-file=src/testing/buildbot/filters/browser-side-navigation.linux.content_browsertests.filter"
+          "--test-launcher-filter-file=../../testing/buildbot/filters/browser-side-navigation.linux.content_browsertests.filter"
         ],
         "swarming": {
           "can_use_on_swarming_builders": true