Add the 'cache' datatype to the clear-site-data WPT

third_party/WebKit/LayoutTests/NeverFixTests

 # This file should only include tests that we never want to run.
 # There should only be the following categories of tests here:
 #   1. Tests of the test harness (run-webkit-tests) itself.
 #   2. Tests enabled by chromium embedders (e.g. Opera).
 #   3. Tests that apply to some platforms but not others.
 #   4. Tests that are too slow in Debug and so we only want to skip them in Debug.
 #   5. Tests that crash due to resource limitations on some platforms or in Debug.
 #   6. Tests that fail due to Debug rendering variations from Release behavior.
 #   7. Tests that are not meant to be run automatically (manual tests).
 #   8. Tests that are automatically imported but not intended to be run.
@@ skipping 234 matching lines @@
 crbug.com/712970 virtual/mojo-loading/http/tests/wasm_streaming/ [ WontFix ]
 
 # These tests require audio codecs which are generally not available;
 # these tests can still be run manually with --skiped=ignore.
 webaudio/codec-tests/mp3 [ WontFix ]
 webaudio/codec-tests/aac [ WontFix ]
 
 # WPT subdirectories without owners.
 external/wpt/accelerometer [ WontFix ]
 external/wpt/assumptions [ WontFix ]
-external/wpt/clear-site-data [ WontFix ]
 external/wpt/css/css-transforms-2 [ WontFix ]
 external/wpt/css-values [ WontFix ]
 external/wpt/gyroscope [ WontFix ]
 external/wpt/longtask-timing [ WontFix ]
 external/wpt/magnetometer [ WontFix ]
 external/wpt/upgrade-insecure-requests [ WontFix ]
 
 # Upstreaming WPT font matching tests first, then activating those once the new
 # font matching algorithm implementation is in place.
 crbug.com/733154 external/wpt/fonts/matching [ WontFix ]
@@ skipping 633 matching lines @@
 
 # These directories have manual tests that don't have to run with
 # run-webkit-tests; see https://crbug.com/359838.
 http/tests/ManualTests/ [ WontFix ]
 virtual/mojo-loading/http/tests/ManualTests/ [ WontFix ]
 
 # These test produce invisible different pixels on Win7 Debug.
 [ Win7 Debug ] fast/table/backgr_border-table-column-group-collapsed-border.html [ WontFix ]
 [ Win7 Debug ] virtual/mojo-loading/fast/table/backgr_border-table-column-group-collapsed-border.html [ WontFix ]