[Cast] Disable autohide of media controls for remote playback

LayoutTests/SlowTests

 # See http://www.chromium.org/developers/testing/webkit-layout-tests/testexpectations for more information on this file.
 
 # This file should only mark tests as Slow. If they are failing in some other way, that listing should be in TestExpectations.
 # Lines listed in both files will have the *union* of the expectations.
 
 # In general, we should list tests in this file if they are slower than ~30% of the default timeout time, as we
 # can see a 3x variance or more in test times on the bots. In practice, this means that any test that takes longer
 # than 2 seconds in Release mode or 6 seconds in Debug mode should be listed here.
 
 crbug.com/24182 [ Debug ] fast/js/toString-and-valueOf-override.html [ Slow ]
@@ skipping 31 matching lines @@
 crbug.com/24182 jquery/core.html [ Slow ]
 crbug.com/24182 jquery/css.html [ Slow ]
 crbug.com/24182 jquery/data.html [ Slow ]
 crbug.com/24182 jquery/dimensions.html [ Slow ]
 crbug.com/24182 jquery/event.html [ Slow ]
 crbug.com/24182 jquery/manipulation.html [ Slow ]
 crbug.com/24182 jquery/offset.html [ Slow ]
 crbug.com/24182 jquery/traversing.html [ Slow ]
 crbug.com/24182 media/track/track-cues-cuechange.html [ Slow ]
 crbug.com/24182 media/track/track-cues-enter-exit.html [ Slow ]
+crbug.com/24182 media/controls-cast-do-not-fade-out.html [ Slow ]

[Mike West, 2014/10/14 03:55:17]

How slow is this test? It's unfortunate that we have to add another item to
SlowTests. :(

It's also surprising that _all_ the tests here point to the same bug. If the
media tests all have the same root cause of slowness, perhaps it makes sense to
tie them together with a separate bug.

[whywhat, 2014/10/14 19:30:57]

It's slightly longer than the default 6 seconds timeout. One has to wait for
about 3.5 seconds until the first check and then the same amount of time until
the second check.
AFAIK, the media tests have different cause of slowness. No idea why all these
exceptions point to the same bug.

 crbug.com/24182 perf/append-text-nodes-without-renderers.html [ Slow ]
 crbug.com/24182 perf/set-attribute.html [ Slow ]
 crbug.com/24182 svg/filters/big-sized-filter.svg [ Slow ]
 crbug.com/24182 tables/mozilla/other/slashlogo.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-blend-image.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-blend-solid.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-composite-alpha.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-composite-canvas.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-createImageBitmap-drawImage.html [ Slow ]
 crbug.com/24182 virtual/gpu/fast/canvas/canvas-draw-canvas-on-canvas-shadow.html [ Slow ]
@@ skipping 112 matching lines @@
 
 crbug.com/362503 http/tests/xmlhttprequest/xmlhttprequest-responseXML-exception.html [ Slow ]
 crbug.com/362509 [ Debug ] fast/parser/xml-error-adopted.xml [ Slow ]
 
 crbug.com/363029 virtual/gpu/fast/canvas/canvas-composite-stroke-alpha.html [ Slow ]
 crbug.com/364225 virtual/gpu/fast/canvas/canvas-composite-text-alpha.html [ Slow ]
 
 crbug.com/372424 fast/dom/DOMImplementation/createDocument-with-used-doctype.html [ Slow ]
 
 crbug.com/372424 http/tests/serviceworker/chromium/registration-stress.html [ Slow ]