Revert removal of grammar checking and marking code

third_party/WebKit/LayoutTests/TestExpectations

 # ====== 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/420008 inspector/tracing/worker-js-frames.html [ Pass Timeout Failure ]
 crbug.com/420008 virtual/threaded/inspector/tracing/worker-js-frames.html [ Pass Timeout Failure ]
 crbug.com/596940 inspector-protocol/runtime/runtime-execution-contexts-events.html [ Pass Timeout ]
 crbug.com/597572 [ Debug ] http/tests/inspector/resource-tree/resource-tree-reload.html [ Pass Failure ]
 
@@ skipping 1352 matching lines @@
 # crbug.com/624709 [ Win ] virtual/gpu-rasterization/fast/images/png-with-color-profile.html [ Failure ]
 crbug.com/624709 [ Win ] virtual/gpu-rasterization/fast/images/webp-color-profile-lossy.html [ Failure ]
 
 crbug.com/620432 accessibility/aria-activedescendant.html [ Failure ]
 
 crbug.com/593567 [ Linux Debug ] virtual/scalefactor150/fast/hidpi/static/calendar-picker-appearance.html [ Skip ]
 crbug.com/593567 [ Linux Debug ] virtual/scalefactor150/fast/hidpi/static/data-suggestion-picker-appearance.html [ Skip ]
 
 crbug.com/627782 [ Win ] svg/filters/filter-source-position.svg [ Pass Failure ]
 
-# crbug.com/627798 editing/spelling/inline-spelling-markers-hidpi-composited.html [ Pass Failure ]
+crbug.com/627798 editing/spelling/inline-spelling-markers-hidpi-composited.html [ Pass Failure ]
 crbug.com/627798 fast/repaint/line-flow-with-floats-9.html [ Pass Failure ]
 crbug.com/627798 fast/repaint/nested-fixed-iframe-scrolled.html [ Pass Failure ]
 crbug.com/627798 fast/repaint/repaint-during-scroll-with-zoom.html [ Pass Failure ]
 crbug.com/627798 fast/repaint/resize-scrollable-iframe.html [ Pass Failure ]
 crbug.com/627798 fast/repaint/text-match-document-change.html [ Pass Failure ]
 crbug.com/627798 fast/forms/fieldset/fieldset-align.html [ Pass Failure ]
 crbug.com/627798 fast/forms/select/listbox-clip.html [ Pass Failure ]
 crbug.com/627798 fast/block/positioning/auto/007.html [ Pass Failure ]
 crbug.com/627798 compositing/overflow/update-widget-positions-on-nested-frames-and-scrollers.html [ Pass Failure ]
 
@@ skipping 10 matching lines @@
 crbug.com/630615 [ Win7 ] fast/images/color-profile-background-image-space.html [ Skip ]
 crbug.com/399507 [ Mac10.9 Mac10.10 Linux ] virtual/threaded/inspector/tracing/timeline-paint/layer-tree.html [ Skip ]
 
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/subframe-scrollBy.html [ Pass Failure ]
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/main-frame-element-scroll.html [ Pass Failure ]
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/main-frame-element-scrollBy.html [ Pass Failure ]
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/main-frame-element-scrollTo.html [ Pass Failure ]
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/main-frame-scroll.html [ Pass Failure ]
 crbug.com/631039 [ Win7 ] virtual/threaded/fast/scroll-behavior/overflow-scroll-scroll.html [ Pass Failure ]
 
-crbug.com/619452 editing/spelling/inline-spelling-markers-hidpi-composited.html [ NeedsManualRebaseline ]
-
 crbug.com/630870 svg/animations/use-animate-width-and-height.html [ Skip ]
 
 crbug.com/541703 http/tests/security/xss-eval.html [ Skip ]
 
 # Flaky on Win7 dbg and Mac10.11 (retina)
 crbug.com/634019 [ Win7 Debug Mac10.11 Retina ] virtual/asyncawait/inspector/sources/debugger-async/async-await/async-callstack-async-await1.html [ Pass Timeout ]
 
 crbug.com/634073 [ Win7 ] transforms/2d/hindi-rotated.html [ Pass Failure ]
 
 # This test breaks when the feature introduced in the bug is enabled. We keep
 # this tested without the feature by using the virtual test. See
 # virtual/stable/http/tests/navigation/beacon-cross-origin-redirect-blob-expected.txt
 crbug.com/490015 http/tests/navigation/beacon-cross-origin-redirect-blob.html [ Skip ]
 # This test doesn't need to be run with the stable release mode.
 crbug.com/490015 virtual/stable/http/tests/navigation/beacon-blob-with-non-simple-type.html [ Skip ]
 # This test fails with the stable release mode.
 crbug.com/490015 virtual/stable/http/tests/navigation/same-and-different-back.html [ Skip ]