First round of updates in response to commenting out stale expectations.

LayoutTests/StaleTestExpectations

 # This file is for TestExpectations entries whose bugs haven't had any activity in 3 months.
 # Only imported test suites, virtual tests or platform/configuration-specific lines should
 # be moved here. The tests for stale cross-platform lines should just be deleted.
 #
 # Feel free to take ownership of any of these lines and get the test passing.
 
 # [pkasting] TESTING: Trying commenting out everything in this file to see which
 # tests are still actually failing.
 
 # webkit.org/b/109400 [ Win ] http/tests/css/css-image-loading.html [ WontFix ]
@@ skipping 19 matching lines @@
 # webkit.org/b/110296 [ Linux ] fast/multicol/newmulticol/column-rules-fixed-height.html [ WontFix ]
 # webkit.org/b/91429 [ Debug ] fast/frames/calculate-round.html [ WontFix ]
 
 # These have been flaky for as long as we have test history.
 # webkit.org/b/52063 [ Win ] http/tests/navigation/ping-cross-origin.html [ WontFix ]
 
 # webkit.org/b/56702 [ Win ] http/tests/navigation/ping-cross-origin-from-https.html [ WontFix ]
 
 # webkit.org/b/74746 [ Win ] http/tests/xmlhttprequest/workers/methods.html [ WontFix ]
 
-# webkit.org/b/81145 [ SnowLeopard Lion ] fast/frames/invalid.html [ WontFix ]
-# webkit.org/b/81145 [ Lion ] fast/writing-mode/broken-ideograph-small-caps.html [ WontFix ]
-# webkit.org/b/81145 [ Lion ] fast/writing-mode/broken-ideographic-font.html [ WontFix ]
-# webkit.org/b/81145 [ Lion ] fast/writing-mode/japanese-rl-text-with-broken-font.html [ WontFix ]
-# webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-wheelevent-paging-x-in-scrolling-page.html [ WontFix ]
-# webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-wheelevent-paging-xy-in-scrolling-page.html [ WontFix ]
-# webkit.org/b/82297 [ Lion MountainLion Mavericks Retina ] fast/events/platform-wheelevent-paging-y-in-scrolling-page.html [ WontFix ]
 # webkit.org/b/ [ Win7 ] http/tests/xmlhttprequest/redirect-cross-origin-post.html [ WontFix ]
 # webkit.org/b/83647 [ Linux Win ] fast/multicol/cell-shrinkback.html [ WontFix ]
 
 # Fails since creation in 122663
 # webkit.org/b/91372 [ Win ] css2.1/20110323/vertical-align-boxes-001.htm [ WontFix ]
 
 # Added by bug 89826
 # webkit.org/b/94003 [ Win ] fast/css/word-spacing-characters-complex-text.html [ WontFix ]
 
 # webkit.org/b/94017 [ Win ] css2.1/20110323/c541-word-sp-000.htm [ WontFix ]
 
 # webkit.org/b/97296 [ Win ] fast/text/international/hebrew-selection.html [ WontFix ]
-# webkit.org/b/98811 [ Mac ] fast/transforms/transformed-focused-text-input.html [ WontFix ]
 # webkit.org/b/99604 [ Win ] http/tests/workers/text-encoding.html [ WontFix ]
 
 # This ref-test doesn't work on Chromium Mac ("Test" is offset).
 # webkit.org/b/101093 [ Mac ] fast/sub-pixel/float-wrap-zoom.html [ WontFix ]
 
 # webkit.org/b/78830 [ Win Linux ] svg/repaint/image-with-clip-path.svg [ WontFix ]
-# webkit.org/b/100023 [ Mac ] fast/sub-pixel/file-upload-control-at-fractional-offset.html [ WontFix ]
 # webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Intel/user-timing/test_user_timing_mark.html [ WontFix ]
 # webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Intel/user-timing/test_user_timing_clearMarks.html [ WontFix ]
 # webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Intel/user-timing/test_user_timing_measure_associate_with_navigation_timing.html [ WontFix ]
 # webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_attribute_order.html [ WontFix ]
 # webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_script_types.html [ WontFix ]
 
 # webkit.org/b/112610 [ Win ] fast/text/word-space-with-kerning-3.html [ WontFix ]
 
-# webkit.org/b/78830 [ Mac ] svg/custom/mask-invalidation.svg [ WontFix ]
 # webkit.org/b/91183 [ Win ] http/tests/w3c/webperf/approved/HighResolutionTime/test_cross_frame_start.html [ WontFix ]
 
 # IETC imported test suites
 # webkit.org/b/83912 ietestcenter/css3/grid/grid-items-002.htm [ WontFix ]
 # webkit.org/b/83913 ietestcenter/css3/grid/grid-items-003.htm [ WontFix ]
-# webkit.org/b/84759 ietestcenter/css3/multicolumn/column-containing-block-001.htm [ WontFix ]
-# webkit.org/b/84760 ietestcenter/css3/multicolumn/column-containing-block-002.htm [ WontFix ]
-# webkit.org/b/84761 ietestcenter/css3/multicolumn/column-filling-001.htm [ WontFix ]
-# webkit.org/b/84770 ietestcenter/css3/multicolumn/column-width-applies-to-007.htm [ WontFix ]
-# webkit.org/b/84771 ietestcenter/css3/multicolumn/column-width-applies-to-009.htm [ WontFix ]
-# webkit.org/b/84772 ietestcenter/css3/multicolumn/column-width-applies-to-010.htm [ WontFix ]
-# webkit.org/b/84773 ietestcenter/css3/multicolumn/column-width-applies-to-012.htm [ WontFix ]
-# webkit.org/b/84777 ietestcenter/css3/multicolumn/column-width-applies-to-015.htm [ WontFix ]
-# webkit.org/b/85211 ietestcenter/css3/flexbox/flexbox-align-stretch-001.htm [ WontFix ]
-# webkit.org/b/85212 ietestcenter/css3/flexbox/flexbox-layout-002.htm [ WontFix ]
-# webkit.org/b/86142 ietestcenter/css3/namespaces/syntax-021.xml [ WontFix ]
 
 # crbug.com/239465 [ Win ] fast/canvas/webgl/premultiplyalpha-test.html [ WontFix ]
 
 # LightTPD doesn't accept unknown HTTP methods
 # crbug.com/30536 [ Win ] http/tests/xmlhttprequest/methods-lower-case.html [ WontFix ]
 # crbug.com/30536 [ Win ] http/tests/xmlhttprequest/methods-async.html [ WontFix ]
 
 # Tests differences from switching to webkit.org's test netscape plugin rather
 # than chromium's old forked copy.
 # crbug.com/108833 plugins/geturlnotify-during-document-teardown.html [ WontFix ]
 
 # This test sometimes fails indefinitely, other times it takes 1-2 seconds.
 # crbug.com/14009 [ Win ] http/tests/misc/dns-prefetch-control.html [ WontFix ]
 
 # crbug.com/250935 [ Win ] fast/multicol/shrink-to-column-height-for-pagination.html [ WontFix ]
 
-# Unexpected gray
-# crbug.com/23476 [ Mac ] fast/frames/inline-object-inside-frameset.html [ WontFix ]
-
 # We could fix this test for us and upstream it if the test shell user agent
 # would let us differentiate test_shell and WebKit DumpTreeNode.
-# crbug.com/7482 [ Win Lion MountainLion Mavericks Retina ] http/tests/misc/timer-vs-loading.html [ WontFix ]
+crbug.com/7482 [ Win Mac ] http/tests/misc/timer-vs-loading.html [ WontFix ]
 
 # This test isn't just slow -- sometimes it times out indefinitely.
 # crbug.com/27569 [ Win ] http/tests/xmlhttprequest/redirect-cross-origin-tripmine.html [ Pass Timeout ] # Also Slow
 
 # Test introduced in r64817
 # crbug.com/51571 [ Win ] http/tests/misc/bad-charset-alias.html [ WontFix ]
 
 # crbug.com/58257 [ Win ] http/tests/misc/last-modified-parsing.html [ WontFix ]
 
 # Failing from r69420
@@ skipping 34 matching lines @@
 # crbug.com/241576 [ Win7 ] http/tests/appcache/multi-fallback.html [ WontFix ]
 # crbug.com/241576 [ Win7 ] http/tests/appcache/non-html.xhtml [ WontFix ]
 # crbug.com/241576 [ Win7 ] http/tests/appcache/offline-access.html [ WontFix ]
 # crbug.com/241576 [ Win7 ] http/tests/appcache/online-fallback-layering.html [ WontFix ]
 # crbug.com/241576 [ Win7 ] http/tests/appcache/remove-cache.html [ WontFix ]
 # crbug.com/241576 [ Win7 ] http/tests/appcache/video.html [ WontFix ]
 
 # crbug.com/260660 [ Linux ] fast/canvas/webgl/array-large-array-tests.html [ WontFix ]
 # crbug.com/260660 [ Linux ] virtual/gpu/fast/canvas/webgl/array-large-array-tests.html [ WontFix ]
 # crbug.com/178745 plugins/open-and-close-window-with-plugin.html [ WontFix ]
-# crbug.com/243248 [ Mac Win ] fast/events/attempt-scroll-with-no-scrollbars.html [ WontFix ]
-# crbug.com/243732 [ Mac ] transforms/3d/point-mapping/3d-point-mapping-3.html [ WontFix ]
 # crbug.com/243738 [ Win ] http/tests/loading/preload-append-scan.php [ WontFix ]
 # crbug.com/244123 [ Win ] fast/forms/suggestion-picker/date-suggestion-picker-key-operations.html [ WontFix ]
 # crbug.com/244123 [ Win ] fast/forms/suggestion-picker/month-suggestion-picker-key-operations.html [ WontFix ]
 # crbug.com/244123 [ Win ] fast/forms/suggestion-picker/week-suggestion-picker-key-operations.html [ WontFix ]
 # crbug.com/247889 [ Win ] http/tests/navigation/back-send-referrer.html [ WontFix ]
 # crbug.com/247979 [ Win Mac Release ] inspector/elements/edit-dom-actions.html [ WontFix ]
 # crbug.com/247979 [ Win7 Debug ] inspector/elements/edit-dom-actions.html [ WontFix ]
 # crbug.com/247979 [ Mac Linux Debug ] inspector/elements/edit-dom-actions.html [ WontFix ]
 # crbug.com/248065 [ Linux ] svg/text/foreignObject-text-clipping-bug.xml [ WontFix ]
 # crbug.com/246077 virtual/android/fullscreen/full-screen-render-inline.html [ WontFix ]
 # crbug.com/259547 virtual/gpu/fast/canvas/canvas-blend-image.html [ WontFix ]
 # crbug.com/259547 virtual/gpu/fast/canvas/canvas-blend-solid.html [ WontFix ]
 # crbug.com/240374 virtual/softwarecompositing/overlap-blending/preserves3d-opacity.html [ WontFix ]
 
 # started failing around Chrome r207326 to r207404, but only on main waterfall
 # Flakes also on the V8 waterfall on Win7.
 # Bug(senorblanco) [ Win ] http/tests/w3c/webperf/submission/Google/HighResolutionTime/worker-dedicated-basic.html [ WontFix ]
 
 # These tests are too slow with our MESA backend.  We can re-enable when we have
 # bots running tests on real hardware. Don't want to just delete these because they
 # pass in the virtual test suite version.
-# webkit.org/b/49629 compositing/lots-of-img-layers.html [ WontFix ]
-# webkit.org/b/49629 compositing/lots-of-img-layers-with-opacity.html [ WontFix ]
+webkit.org/b/49629 compositing/lots-of-img-layers.html [ WontFix ]
+webkit.org/b/49629 compositing/lots-of-img-layers-with-opacity.html [ WontFix ]
 
 # Don't want to just delete this test since the virtual/softwarecompositing version passes.
 # crbug.com/245630 compositing/overflow/overflow-positioning.html [ WontFix ]
-
-# Out-of-date imported test; spec now supports ImageData constructors.
-# crbug.com/338804 canvas/philip/tests/2d.imageData.object.ctor.html [ WontFix ]
-# crbug.com/338804 virtual/gpu/canvas/philip/tests/2d.imageData.object.ctor.html [ WontFix ]