Reland "Add 4 TestExpecations from WebKit Linux Trusty Leak"

This is a reland of 0cbeffae
Original change's description:
> Add 4 TestExpecations from WebKit Linux Trusty Leak
> 
> After landing the CL enabling WPT tests that don't necessarily
> correspond to real files (crrev.com/c/461722/), 4 Timeout 
> TestExpectations from that CL turned up as Failures on WebKit Linux 
> Trusty Leak. 
> 
> Bug: 703837
> TBR: qyearsley@chromium.org
> Change-Id: Ideb2d49c866f04d5105c0ad30446b6c92124f0f2
> Reviewed-on: https://chromium-review.googlesource.com/566019
> Commit-Queue: Jeff Carpenter <jeffcarp@chromium.org>
> Reviewed-by: Quinten Yearsley <qyearsley@chromium.org>
> Reviewed-by: Bret Sepulveda <bsep@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#485464}

TBR: qyearsley@chromium.org
Bug: 703837
Change-Id: I23f301716c62c67976b5ff9b4d26bfc80f57bc66
Reviewed-on: https://chromium-review.googlesource.com/575590Reviewed-by: Jeff Carpenter <jeffcarp@chromium.org>
Commit-Queue: Jeff Carpenter <jeffcarp@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487359}

third_party/WebKit/LayoutTests/TestExpectations

@@ -2768,13 +2768,13 @@ crbug.com/709227 external/wpt/performance-timeline/po-entries-sort.any.worker.ht
 # Timeouts
 crbug.com/709227 external/wpt/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/serialization-via-idb.any.worker.html [ Timeout ]
 crbug.com/709227 external/wpt/websockets/binary/001.html?wss [ Timeout ]
-crbug.com/709227 external/wpt/websockets/binary/002.html?wss [ Timeout ]
-crbug.com/709227 external/wpt/websockets/binary/004.html?wss [ Timeout ]
+crbug.com/709227 external/wpt/websockets/binary/002.html?wss [ Failure Timeout ]
+crbug.com/709227 external/wpt/websockets/binary/004.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/websockets/binary/005.html?wss [ Timeout ]
-crbug.com/709227 external/wpt/websockets/extended-payload-length.html?wss [ Timeout ]
+crbug.com/709227 external/wpt/websockets/extended-payload-length.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-arraybuffer.html?wss [ Timeout ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-blob.html?wss [ Timeout ]
-crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-large.html?wss [ Timeout ]
+crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-large.html?wss [ Failure Timeout ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-unicode.html?wss [ Timeout ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/events/018.html?wss [ Timeout ]
 crbug.com/709227 external/wpt/websockets/interfaces/WebSocket/send/005.html?wss [ Timeout ]