Auto merge of #12544 - izgzhen:patch-file-api, r=Manishearth

Patches of File API

r? @Manishearth

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tests/wpt/metadata/FileAPI/file/File-constructor.html.ini

@@ -11,8 +11,3 @@
   [Various fileBits]
     expected: FAIL
     bug: https://github.com/servo/servo/issues/10911
-
-  [Using special character in fileName]
-    expected: FAIL
-    bug: https://github.com/w3c/FileAPI/issues/41
-