[Gardening] inspector/audits/audits-panel-functional.html is flaky.

BUG=431152
TBR=dcheng@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/703213006

git-svn-id: svn://svn.chromium.org/blink/trunk@184941 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/TestExpectations

@@ -1459,3 +1459,5 @@ crbug.com/429133 [ SnowLeopard ] virtual/textblob/fast/text/text-combine-shrink-
 
 crbug.com/429843 [ Win7 Debug ] media/video-controls-with-cast-rendering.html [ Pass ImageOnlyFailure ]
 crbug.com/429874 [ Win ] http/tests/serviceworker/cache-match.html [ Pass Failure ]
+
+crbug.com/431152 inspector/audits/audits-panel-functional.html [ Pass Failure ]