Mark a two layout tests as being flaky.

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index d943ddcb419dea54cce9764c5936cc3ca9ffb6b3..cd22217ab4fa16b14a8bfba66781da1213d03b1c 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -72,6 +72,7 @@ crbug.com/520169 [ Win ] fast/dom/Geolocation/timestamp.html [ Failure Pass ]
 crbug.com/520170 [ Win ] fast/dom/timer-throttling-hidden-page.html [ Failure Pass ]
 crbug.com/520172 [ Win ] fast/dom/webtiming.html [ Failure Pass ]
 crbug.com/520173 fast/events/domactivate-sets-underlying-click-event-as-handled.html [ Failure Pass ]
+crbug.com/520173 virtual/trustedeventsdefaultaction/fast/events/domactivate-sets-underlying-click-event-as-handled.html [ Failure Pass ]
 crbug.com/520174 fast/events/message-port-start-and-close-different-microtask.html [ Failure Pass ]
 crbug.com/520177 [ Android ] fast/images/style-access-during-imageChanged-crash.html [ Crash Pass ]
 crbug.com/520178 fast/loader/form-submit-aborts-parsing.html [ Failure Pass ]
@@ -1533,3 +1534,5 @@ crbug.com/524804 [ Win10 ] animations/svg-attribute-interpolation/svg-x1-interpo
 crbug.com/524804 [ Win10 ] animations/svg-attribute-interpolation/svg-xChannelSelector-interpolation.html [ Failure Pass ]
 
 crbug.com/524826 [ Win10 ] compositing/squashing/squashing-reflection-disallowed.html [ Pass Timeout ]
+
+crbug.com/525065 webaudio/audionode-disconnect-audioparam.html [ Failure Pass ]