Import XMLHttpRequest wpt tests.

third_party/WebKit/LayoutTests/W3CImportExpectations

 # This file controls which subdirectories of the w3c test repos we 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; it will read entries with the following format:
 # When removing blacklist entries:
 # * Comment out the line rather than deleting it, to show it is intentional.
 # * Change [ Skip ] to [ Pass ]
 # * Add a leading comment: ## Owners: user@example.com
 #
 # We may want to move towards importing but not running directories without
 # owners, in order to make it easier to enable or run them in the future --
 # directories that are imported but not run are listed in NeverFixTests.
 
 external/wpt/2dcontext [ Skip ]
 external/wpt/DOM-parsing [ Skip ]
 ## Owners: jsbell@chromium.org
 # external/wpt/FileAPI [ Pass ]
 ## Owners: jsbell@chromium.org
 # external/wpt/IndexedDB [ Pass ]
 external/wpt/WebCryptoAPI [ Skip ]
 ## Owners: jsbell@chromium.org
 # external/wpt/WebIDL [ Pass ]
 external/wpt/WebIDL/invalid [ Skip ]
 external/wpt/WebIDL/readme.txt [ Skip ]
 external/wpt/WebIDL/testable_assertions.txt [ Skip ]
 external/wpt/WebIDL/valid [ Skip ]
-external/wpt/XMLHttpRequest [ Skip ]
+## Owners: blink-network-dev@chromium.org
+# external/wpt/XMLHttpRequest [ Pass ]
 external/wpt/ambient-light [ Skip ]
 external/wpt/animation-timing [ Skip ]
 external/wpt/annotation-model [ Skip ]
 external/wpt/annotation-protocol [ Skip ]
 external/wpt/annotation-vocab [ Skip ]
 external/wpt/app-uri [ Skip ]
 external/wpt/battery-status [ Skip ]
 ## Owners: ortuno@chromium.org,scheib@chromium.org
 # external/wpt/bluetooth [ Pass ]
 ## Owners: none; No tests in the directory.
@@ skipping 703 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 ]