W3C test importer: Unskip some files with non-utf8 encodings.

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 655 matching lines @@
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe-allowfullscreen.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-2.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-2.html [ Skip ]
 external/wpt/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-3.html [ Skip ]
 external/wpt/html/semantics/forms/form-submission-0/url-encoded.html [ Skip ]
 external/wpt/svg/linking/scripted [ Skip ]
 
-# Importer fails to import some files with some non-utf8 encodings.
-crbug.com/656171 external/wpt/workers/semantics/encodings [ Skip ]
-crbug.com/656171 external/wpt/html/semantics/scripting-1/the-script-element/external-script-windows1250.js [ Skip ]
-crbug.com/656171 external/wpt/html/semantics/scripting-1/the-script-element/script-charset-01.html [ Skip ]
-crbug.com/656171 external/wpt/html/semantics/scripting-1/the-script-element/script-charset-02.html [ Skip ]
-crbug.com/656171 external/wpt/html/semantics/scripting-1/the-script-element/script-charset-03.html [ Skip ]
-
 # They have a wrong encoding, and test_parser.py throws UnicodeEncodeError.
 external/wpt/domxpath/001.html [ Skip ]
 external/wpt/domxpath/002.html [ Skip ]
 
 # This test depends on a file xml_xpath_tests.xml, which is too large
 # for Rietveld to handle now, so it's not currently imported.
 crbug.com/676491 external/wpt/domxpath/xml_xpath_runner.html [ Skip ]
 crbug.com/676491 external/wpt/domxpath/xml_xpath_tests.xml [ Skip ]
 
 # This test depends on a support file with non-LF new lines, which
@@ skipping 93 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 ]