Remove long path check in test import process.

third_party/WebKit/LayoutTests/W3CImportExpectations

 # This file controls which subdirectories of the w3c test repos we do (or don't) import.
 #
 # This file acts as a blacklist; directories and files not listed here will automatically
 # be found and imported.
 #
 # This file is read by webkitpy/w3c/directory_owners_extractor.py to decide who
 # to contact for new failures; to allow it to read
 # When removing blacklist entries:
 # * Comment out the line rather than deleting it, to show it is intentional
 # * Change [ Skip ] to [ Pass ]
@@ skipping 488 matching lines @@
 crbug.com/626703 external/csswg-test/css-values-4/ic-unit-003.html [ Failure ]
 
 # https://github.com/w3c/web-platform-tests/issues/1861: A function can be
 # called before it's defined.
 # crbug.com/493465: Requires the pipe feature of wptserve
 external/wpt/html/browsers/the-window-object/security-window/window-security.sub.html [ Skip ]
 
 # crbug.com/493465: Requires the pipe feature of wptserve
 external/wpt/html/infrastructure/urls/resolving-urls [ Skip ]
 
-# crbug.com/535615: Pathnames are too long for Windows.
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-insert-fragment-into-document.html [ Skip ]
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-insert-parent-into-document.html [ Skip ]
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-insert-source-networkState.html [ Skip ]
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-insert-source-not-in-document.html [ Skip ]
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-invoke-remove-from-document-networkState.html [ Skip ]
-external/wpt/html/semantics/embedded-content/media-elements/loading-the-media-resource/resource-selection-pointer-remove-source-after.html [ Skip ]
-
 # It contains only manual SVG tests.
 external/wpt/html/editing/dnd/svg [ Skip ]
 
 # crbug.com/496467: "hxml" files have CR (not CR+LF) and any patches fail.
 external/wpt/html/editing/dnd/platform/plugin/swfsources [ Skip ]
 
 # crbug.com/662667: CRLF line endings
 external/wpt/html/syntax/parsing-html-fragments/the-input-byte-stream-003.html [ Skip ]
 external/wpt/html/syntax/parsing-html-fragments/the-input-byte-stream-004.html [ Skip ]
 
@@ skipping 259 matching lines @@
 external/wpt/uievents/order-of-events/focus-events/focus-contained-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/focus-events/legacy-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/click-cancel-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/click-on-body-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/click-on-div-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/click-on-html-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/click-order-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/mouseevents-mousemove-manual.htm [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/mousemove-across-manual.html [ Skip ]
 external/wpt/uievents/order-of-events/mouse-events/mousemove-between-manual.html [ Skip ]