Remove TestExpectations lines for tests which appear to be non-flaky recently.

third_party/WebKit/LayoutTests/TestExpectations

 # Intentional failures to test the layout test system.
 Bug(intentional) harness-tests/crash.html [ Crash ]
 Bug(intentional) harness-tests/timeout.html [ Timeout ]
 
 # ====== Oilpan-only failures from here ======
 # Most of these actually cause the tests to report success, rather than
 # failure. Expected outputs will be adjusted for the better once Oilpan
 # has been well and truly enabled always.
 
 crbug.com/569901 crbug.com/24182 [ Debug ] jquery/manipulation.html [ Timeout Pass ]
@@ skipping 784 matching lines @@
 # These performance-sensitive user-timing tests are flaky in debug on all platforms, and flaky on all configurations of windows.
 # See: crbug.com/567965, crbug.com/518992, and crbug.com/518993
 crbug.com/567965 [ Debug ] external/wpt/user-timing/test_user_timing_measure.html [ Skip ]
 crbug.com/518992 [ Win Release ] external/wpt/user-timing/test_user_timing_measure.html [ Skip ]
 crbug.com/567965 [ Debug ] external/wpt/user-timing/test_user_timing_mark.html [ Skip ]
 crbug.com/518993 external/wpt/user-timing/test_user_timing_measure_navigation_timing.html [ Skip ]
 
 crbug.com/636053 [ Mac Win ] printing/thead-repeats-at-top-of-each-page-multiple-tables.html [ NeedsManualRebaseline ]
 crbug.com/636053 [ Mac Win ] virtual/threaded/printing/thead-repeats-at-top-of-each-page-multiple-tables.html [ NeedsManualRebaseline ]
 
-crbug.com/659123 [ Mac ] fast/css/text-overflow-ellipsis-button.html [ Pass Failure ]
-
 crbug.com/432129 html/marquee/marquee-scroll.html [ Failure Pass ]
 crbug.com/326139 crbug.com/390125 media/video-frame-accurate-seek.html [ Failure Pass ]
 crbug.com/248938 virtual/threaded/animations/animation-iteration-event-destroy-renderer.html [ Pass Timeout ]
 crbug.com/446385 [ Win7 Debug ] http/tests/xmlhttprequest/xmlhttprequest-json-response-overflow.html [ Crash Pass Timeout ]
 crbug.com/446385 [ Win7 Debug ] virtual/mojo-loading/http/tests/xmlhttprequest/xmlhttprequest-json-response-overflow.html [ Crash Pass Timeout ]
 crbug.com/248938 virtual/threaded/animations/dynamic-stylesheet-loading.html [ Pass Failure Timeout ]
 crbug.com/638693 virtual/threaded/animations/display-inline-style-adjust.html [ Pass Crash Failure ]
 crbug.com/421283 html/marquee/marquee-scrollamount.html [ Pass Failure ]
 
 # TODO(oshima): Mac Android are currently not supported.
@@ skipping 508 matching lines @@
 crbug.com/574283 [ Mac ] virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-added.html [ Skip ]
 crbug.com/574283 [ Mac ] virtual/threaded/fast/scroll-behavior/smooth-scroll/main-thread-scrolling-reason-correctness.html [ Skip ]
 crbug.com/574283 [ Mac ] virtual/threaded/fast/scroll-behavior/smooth-scroll/mousewheel-scroll-interrupted.html [ Skip ]
 crbug.com/574283 [ Mac ] virtual/threaded/fast/scroll-behavior/smooth-scroll/ongoing-smooth-scroll-anchors.html [ Skip ]
 
 crbug.com/665577 virtual/threaded/fast/scroll-behavior/overflow-scroll-animates.html [ Pass Timeout ]
 crbug.com/665577 virtual/threaded/fast/scroll-behavior/overflow-scroll-root-frame-animates.html [ Pass Timeout ]
 crbug.com/665577 virtual/threaded/fast/scroll-behavior/smooth-scroll/mousewheel-scroll.html [ Pass Failure ]
 crbug.com/665577 [ Linux Win ] virtual/threaded/fast/scroll-behavior/smooth-scroll/horizontal-smooth-scroll-in-rtl.html [ Pass Failure ]
 crbug.com/665577 [ Linux Win ] virtual/threaded/fast/scroll-behavior/smooth-scroll/mousewheel-scroll-interrupted.html [ Pass Failure ]
-crbug.com/665577 [ Linux Win ] virtual/threaded/fast/scroll-behavior/smooth-scroll/ongoing-smooth-scroll-vertical-rl-anchors.html [ Pass Failure ]
 crbug.com/665577 [ Linux Win ] virtual/threaded/fast/scroll-behavior/smooth-scroll/track-scroll.html [ Pass Failure ]
 
 crbug.com/480769 http/tests/inspector/service-workers/service-workers-redundant.html [ Pass Failure ]
 crbug.com/480769 virtual/mojo-loading/http/tests/inspector/service-workers/service-workers-redundant.html [ Pass Failure ]
 
 crbug.com/599670 [ Win Linux ] http/tests/inspector/resource-parameters-ipv6.html [ Failure Pass ]
 crbug.com/599670 [ Win Linux ] virtual/mojo-loading/http/tests/inspector/resource-parameters-ipv6.html [ Failure Pass ]
 crbug.com/472330 fast/borders/border-image-outset-split-inline-vertical-lr.html [ Failure ]
 crbug.com/472330 fast/writing-mode/box-shadow-vertical-lr.html [ Failure ]
 crbug.com/472330 fast/writing-mode/box-shadow-vertical-rl.html [ Failure ]
@@ skipping 1144 matching lines @@
 crbug.com/663858 fast/text/emphasis-vertical.html [ Pass Failure ]
 crbug.com/663876 http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html [ Pass Failure ]
 crbug.com/664816 http/tests/security/contentSecurityPolicy/require-sri-for/require-sri-for-script-reportonly-blocked.php [ Pass Failure ]
 crbug.com/664819 http/tests/security/isolatedWorld/bypass-main-world-csp-for-inline-style.html [ Pass Failure ]
 crbug.com/664819 http/tests/security/isolatedWorld/bypass-main-world-csp-for-xhr.html [ Pass Failure ]
 crbug.com/664819 http/tests/security/isolatedWorld/bypass-main-world-csp-iframes.html [ Pass Failure ]
 crbug.com/664819 http/tests/security/isolatedWorld/events.html [ Pass Failure ]
 crbug.com/664839 http/tests/security/link-crossorigin-preload-no-cors.html [ Pass Failure ]
 crbug.com/671475 http/tests/security/suborigins/suborigin-invalid-options.html [ Pass Failure ]
 crbug.com/663876 virtual/mojo-loading/http/tests/loading/doc-write-sync-third-party-script-block-effectively-2g.html [ Pass Failure ]
-crbug.com/664816 virtual/mojo-loading/http/tests/security/contentSecurityPolicy/require-sri-for/require-sri-for-script-reportonly-blocked.php [ Pass Failure ]
 crbug.com/664819 virtual/mojo-loading/http/tests/security/isolatedWorld/bypass-main-world-csp-for-inline-style.html [ Pass Failure ]
 crbug.com/664819 virtual/mojo-loading/http/tests/security/isolatedWorld/bypass-main-world-csp-for-xhr.html [ Pass Failure ]
 crbug.com/664819 virtual/mojo-loading/http/tests/security/isolatedWorld/bypass-main-world-csp-iframes.html [ Pass Failure ]
 crbug.com/664819 virtual/mojo-loading/http/tests/security/isolatedWorld/events.html [ Pass Failure ]
 crbug.com/664839 virtual/mojo-loading/http/tests/security/link-crossorigin-preload-no-cors.html [ Pass Failure ]
 
 crbug.com/703813 mojo/union.html [ Pass Timeout ]
 
 # Possible duplicate of crbug.com/498539
 # crbug.com/664843 inspector/elements/styles-4/styles-update-from-js.html [ Pass Failure ]
@@ skipping 78 matching lines @@
 crbug.com/659139 [ Mac ] shapedetection/detection-ImageBitmap.html [ Skip ]
 crbug.com/659139 [ Mac ] shapedetection/detection-ImageData.html [ Skip ]
 crbug.com/659139 [ Mac ] shapedetection/detection-options.html [ Skip ]
 
 crbug.com/685951 css2.1/t040304-c64-uri-00-a-g.html [ Failure Pass ]
 
 # Sheriff failures 2017-02-03
 crbug.com/688515 fast/spatial-navigation/snav-div-overflow-scrol-hidden.html [ Pass Failure ]
 
 # Flaky on trybots
-crbug.com/688486 external/wpt/service-workers/service-worker/fetch-request-redirect.https.html [ Failure Pass ]
 crbug.com/688486 external/wpt/service-workers/service-worker/fetch-request-resources.https.html [ Failure Pass ]
 
 # Sheriff failures 2017-02-21
 crbug.com/73609 http/tests/media/video-play-stall.html [ Pass Timeout ]
 crbug.com/73609 virtual/mojo-loading/http/tests/media/video-play-stall.html [ Pass Timeout ]
 
 # Sheriff failures 2017-02-27
 crbug.com/696407 [ Linux ] external/wpt/html/browsers/history/the-location-interface/location-protocol-setter-with-colon.sub.html [ Failure Pass ]
 crbug.com/694338 [ Mac10.9 ] fast/forms/calendar-picker/calendar-picker-appearance-zoom125.html [ Failure ]
 crbug.com/694338 [ Mac10.9 ] fast/forms/calendar-picker/calendar-picker-appearance-zoom200.html [ Failure ]
 
 # Sheriff failures 2017-02-28
 crbug.com/696903 [ Mac ] custom-properties/register-property-syntax-parsing.html [ Crash ]
 crbug.com/696903 [ Mac ] custom-properties/register-property.html [ Crash ]
 
 crbug.com/697087 external/wpt/service-workers/service-worker/registration-iframe.https.html [ Pass Timeout ]
 
 crbug.com/697342 http/tests/push_messaging/permission-state-granted-in-document.html [ Pass Failure ]
 crbug.com/697342 virtual/mojo-loading/http/tests/push_messaging/permission-state-granted-in-document.html [ Pass Failure ]
 
 crbug.com/698520 external/wpt/preload/fetch-destination.https.html [ Failure Pass ]
-crbug.com/698521 external/wpt/preload/preload-with-type.html [ Failure Pass ]
 
 # Sheriff failures 2017-03-10
 crbug.com/402805 inspector-protocol/input/emulateTouchFromMouseEvent.html [ Timeout ]
 crbug.com/700374 [ Win ] virtual/mojo-loading/http/tests/inspector/workers-on-navigation.html [ Failure Pass ]
 crbug.com/700374 [ Win ] http/tests/inspector/workers-on-navigation.html [ Failure Pass ]
 
-# Sheriff failures 2017-03-16
-crbug.com/701718 [ Win7 ] fast/table/border-collapsing/001-vertical.html [ Failure Pass ]
-crbug.com/701718 [ Win7 ] fast/table/border-collapsing/001.html [ Failure Pass ]
-
 # Sheriff failures 2017-03-21
 crbug.com/703503 inspector/tracing/timeline-js/timeline-runtime-stats.html [ Failure Pass ]
 crbug.com/703518 inspector/tracing/worker-js-frames.html [ Failure Pass ]
 crbug.com/703518 virtual/threaded/inspector/tracing/worker-js-frames.html [ Failure Pass ]
 crbug.com/703533 [ Mac ] shapedetection/detection-security-test.html  [ Crash Failure Pass ]
 crbug.com/674720 http/tests/loading/preload-img-test.html [ Pass Failure ]
 crbug.com/674720 virtual/mojo-loading/http/tests/loading/preload-img-test.html [ Pass Failure ]
 crbug.com/703650 virtual/enable_wasm/http/tests/wasm/wasm_serialization_tests.html [ Skip ]
 crbug.com/703650 virtual/enable_wasm/http/tests/wasm/wasm_indexeddb_test.html [ Skip ]
 
 crbug.com/v8/5808 inspector/coverage/gutter-js.html  [ NeedsManualRebaseline ]
 crbug.com/v8/5808 inspector/coverage/multiple-instances-merge.html [ NeedsManualRebaseline ]