Enable SharedArrayBuffer feature by default.

third_party/WebKit/LayoutTests/NeverFixTests

 # This file should only include tests that we never intend to fix.
 # There should only be 6 categories of tests here:
 #   1. Test harness tests.
 #   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.
 
 # FIXME: Remove the WontFix keyword and have that be implied. That way, people won't abuse
@@ skipping 21 matching lines @@
 
 # Chrome Mac doesn't support Ctrl+Up/Down key-bindings.
 [ Mac ] editing/input/ctrl-up-down.html [ WontFix ]
 
 # Chrome uses different keyboard accelerators from those used by Safari, so
 # this test will always fail.
 [ Linux Win ] fast/events/option-tab.html [ WontFix ]
 
 # This test only applies to overlay scrollbar platforms.
 [ Win Linux ] fast/dom/partial-layout-overlay-scrollbars.html [ WontFix ]
-[ Win Linux ] virtual/sharedarraybuffer/fast/dom/partial-layout-overlay-scrollbars.html [ WontFix ]
 
 # Mac's popup behavior is different.
 [ Mac ] fast/forms/select/menulist-onchange-fired-with-key-up-down.html [ WontFix ]
 [ Mac ] fast/forms/select/popup-with-display-none-optgroup.html [ WontFix ]
 [ Mac ] fast/forms/select-popup [ WontFix ]
 
 # Android has a different popup menu implementation.
 [ Android ] fast/forms/select-popup [ WontFix ]
 
 # These tests are specific to Windows and Linux.
@@ skipping 42 matching lines @@
 [ Android ] http/tests/media/media-source/mediasource-config-change-mp4-av-video-bitrate.html [ WontFix ]
 [ Android ] http/tests/media/media-source/mediasource-config-change-mp4-v-bitrate.html [ WontFix ]
 [ Android ] http/tests/media/media-source/mediasource-config-change-mp4-v-framerate.html [ WontFix ]
 [ Android ] http/tests/media/media-source/mediasource-config-change-mp4-v-framesize.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-av-audio-bitrate.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-av-framesize.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-av-video-bitrate.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-v-bitrate.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-v-framerate.html [ WontFix ]
 [ Android ] virtual/mojo-loading/http/tests/media/media-source/mediasource-config-change-mp4-v-framesize.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-av-audio-bitrate.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-av-framesize.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-av-video-bitrate.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-v-bitrate.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-v-framerate.html [ WontFix ]
-[ Android ] virtual/sharedarraybuffer/http/tests/media/media-source/mediasource-config-change-mp4-v-framesize.html [ WontFix ]
 
 # Only run fake-Android tests on Linux
 [ Mac Win ] virtual/android [ WontFix ]
 
 # We only run it through the virtual gpu test suite.
 fast/canvas/canvas-lost-gpu-context.html [ WontFix ]
 
 # Missing Chrome Mac support, will start working when we move to harfbuzz on mac.
 [ Mac ] fast/text/international/zerowidthjoiner.html [ WontFix ]
 
@@ skipping 96 matching lines @@
 # wasm tests. Currently under virtual/enable_wasm or virtual/enable_wasm_streaming
 crbug.com/642912 http/tests/wasm/ [ WontFix ]
 crbug.com/642912 virtual/mojo-loading/http/tests/wasm/ [ WontFix ]
 crbug.com/712970 http/tests/wasm_streaming/ [ WontFix ]
 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 ]
-virtual/sharedarraybuffer/webaudio/codec-tests/mp3 [ WontFix ]
-virtual/sharedarraybuffer/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-values [ WontFix ]
 external/wpt/gyroscope [ WontFix ]
 external/wpt/magnetometer [ WontFix ]
 external/wpt/upgrade-insecure-requests [ WontFix ]
 external/wpt/longtask-timing [ WontFix ]
@@ skipping 379 matching lines @@
 #external/wpt/encrypted-media/clearkey-mp4-update-disallowed-input.html [ WontFix ]
 #external/wpt/encrypted-media/clearkey-mp4-waiting-for-a-key.html [ WontFix ]
 #external/wpt/encrypted-media/clearkey-events-session-closed-event.html [ WontFix ]
 #external/wpt/encrypted-media/clearkey-update-non-ascii-input.html [ WontFix ]
 
 # This W3C EME test fetches a file which is not allowed
 #external/wpt/encrypted-media/idlharness.html [ WontFix ]
 
 [ Win7 Debug ] virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html [ WontFix ]