Some more test_expectations cleanup. Trying to document some flakiness from ...

webkit/tools/layout_tests/test_expectations.txt

 // This file consists of lines with specifications of what
 // to expect from layout test cases. The test cases can be directories
 // in which case the expectations apply to all test cases in that
 // directory and any subdirectory. The format of the file is along the
 // lines of:
 //
 // LayoutTests/fast/js/fixme.js = FAIL
 // LayoutTests/fast/js/flaky.js = FAIL PASS
 // LayoutTests/fast/js/crash.js = CRASH TIMEOUT FAIL PASS
 //
@@ skipping 781 matching lines @@
 BUG9798 BUG13907 SLOW : LayoutTests/media/video-played-collapse.html = PASS FAIL
 BUG9798 BUG13907 SLOW : LayoutTests/media/video-played-ranges-1.html = PASS FAIL
 BUG9798 BUG13907 SLOW : LayoutTests/media/video-played-reset.html = PASS FAIL
 
 // The first load event fires occasionally, ending the test early.
 BUG9798 BUG13907 WIN RELEASE : LayoutTests/media/video-error-abort.html = FAIL PASS
 
 // We output an extra playing event and video durations are different.
 BUG13907 SKIP : LayoutTests/media/video-loop.html = FAIL
 
+// This one times out occasionally.
+BUG13907 WIN : LayoutTests/media/video-load-networkState.html = PASS TIMEOUT
+
 // We occasionally fail to perform the third seek.
 BUG13907 MAC WIN : LayoutTests/media/video-seeking.html = PASS FAIL
 BUG13907 LINUX RELEASE : LayoutTests/media/video-seeking.html = PASS FAIL
 BUG13907 LINUX DEBUG : LayoutTests/media/video-seeking.html = PASS FAIL TIMEOUT
 
 // Seeking to 500s causes us to seek to 0s and continue playing (expected), but WebKit checks too fast.
 // The test uses setTimeout() and is flaky.
 BUG13907 SLOW : LayoutTests/media/video-seek-past-end-playing.html = FAIL
 
 // We sometimes emit an error from the same source element twice.
@@ skipping 1799 matching lines @@
 BUG9798 LINUX MAC : LayoutTests/http/tests/navigation/reload-subframe-iframe.html = PASS TIMEOUT
 BUG9798 WIN DEBUG : LayoutTests/fast/inline-block/contenteditable-baseline.html = CRASH PASS
 BUG9798 WIN LINUX : LayoutTests/svg/custom/js-update-transform-addition.svg = CRASH PASS
 BUG9798 MAC : LayoutTests/editing/selection/drag-in-iframe.html = FAIL PASS
 BUG9798 WIN LINUX : LayoutTests/svg/custom/use-property-changes-through-svg-dom.svg = FAIL PASS
 BUG9798 LINUX : LayoutTests/svg/custom/js-update-transform-changes.svg = FAIL PASS
 // Occasionally times out. Not just slow.
 BUG9798 MAC : LayoutTests/http/tests/misc/xmltokenizer-do-not-crash.pl = PASS TIMEOUT
 // Occasionally times out. Not just slow.
 BUG9798 WIN DEBUG : LayoutTests/http/tests/loading/redirect-methods.html = TIMEOUT PASS
+BUG9798 MAC DEBUG : LayoutTests/plugins/geturl-replace-query.html = TEXT PASS
 
 // New tests or failures from WebKit merge 42324:42364. Re-baselined on
 // Windows. Probably just need the same on other platforms.
 BUG9962 LINUX : LayoutTests/fast/block/positioning/fixed-positioning-scrollbar-bug.html = FAIL
 BUG9962 MAC : LayoutTests/fast/js/function-apply-aliased.html = FAIL
 
 // Regressions from WebKit merge 43264:42403, possibly due to r42375.
 BUG9992 WIN LINUX : LayoutTests/fast/text/shadow-no-blur.html = FAIL
 
 // Regressions from WebKit merge 43264:42403, unknown cause(s)
@@ skipping 364 matching lines @@
 
 // WK roll 48388:48399 (brettw)
 BUG21919 WIN : LayoutTests/http/tests/security/mixedContent/insecure-css-in-main-frame.html = FAIL PASS
 
 // Flaky. The width of containing RenderBlocks sometimes becomes larger
 BUG21958 WIN LINUX DEBUG : LayoutTests/svg/hixie/error/012.xml = FAIL PASS
 BUG21958 MAC : LayoutTests/svg/hixie/error/012.xml = FAIL PASS
 
 // WK roll 48399:48423 (brettw)
 BUG22014 : LayoutTests/http/tests/loading/redirect-with-no-location-crash.html = FAIL
-BUG22014 LINUX MAC : LayoutTests/transitions/hang-with-bad-transition-list.html = PASS FAIL
+BUG22014 : LayoutTests/transitions/hang-with-bad-transition-list.html = PASS FAIL
 
 // WebKit merge 48500:48585, newly implemented Object.defineProperty.
 BUG22526 : LayoutTests/fast/js/Object-create.html = FAIL
 BUG22526 : LayoutTests/fast/js/Object-defineProperties.html = FAIL
 BUG22526 : LayoutTests/fast/js/Object-defineProperty.html = FAIL
 BUG22526 : LayoutTests/http/tests/security/xss-DENIED-defineProperty.html = TIMEOUT
 
 // WebKit merge 48500:48585, due to newly added support for MathML.
 BUG22554 SKIP : LayoutTests/mathml = FAIL
 
@@ skipping 24 matching lines @@
 BUG24331 LINUX : LayoutTests/svg/text/text-tselect-02-f.svg = FAIL PASS
 
 // WebKit update: 49190:49206
 BUG_JPARENT WIN DEBUG : LayoutTests/fast/frames/calculate-percentage.html = CRASH PASS
 BUG_JPARENT LINUX DEBUG SLOW : LayoutTests/fast/frames/calculate-fixed.html = PASS
 
 // Started failing for no apparent reason at r28124
 BUG23972 LINUX WIN : LayoutTests/fast/forms/form-element-geometry.html = CRASH PASS
 
 // Flaky timeouts first appearing at r27764 (webkit 48947)
-BUG9798 LINUX MAC : LayoutTests/http/tests/cookies/multiple-cookies.html = TIMEOUT PASS
+BUG9798 : LayoutTests/http/tests/cookies/multiple-cookies.html = TIMEOUT PASS
 
 // WebKit update: 49213:49221
 BUG24063 : LayoutTests/fast/dom/Window/window-postmessage-clone.html = FAIL
 
 // Got slow with V8 update to 1.3.15. Debug logging perhaps?
 BUG24182 DEBUG SLOW : LayoutTests/fast/forms/input-implicit-length-limit.html = PASS
 BUG24182 DEBUG SLOW : LayoutTests/fast/forms/input-maxlength.html = PASS
 
 // Failing after r28267
 BUG24116 SLOW : LayoutTests/http/tests/loading/gmail-assert-on-load.html = FAIL
@@ skipping 131 matching lines @@
 // WebKit roll 50248:50258
 BUG26195 : LayoutTests/accessibility/aria-option-role.html = TEXT
 BUG26195 LINUX : LayoutTests/fast/forms/select-empty-option-height.html = PASS TIMEOUT
 BUG26195 LINUX : LayoutTests/svg/custom/marker-default-width-height.svg = TEXT
 BUG26195 LINUX RELEASE : LayoutTests/fast/overflow/overflow_hidden.html = PASS CRASH
 BUG26195 MAC : LayoutTests/css3/css3-modsel-33.html = TEXT
 BUG26195 MAC : chrome/plugins/script-object-invoke.html = TEXT
 
 // randomly started to be flaky on r30451 (revision had only a check-in of text_expectations.txt)
 BUG26195 MAC DEBUG : LayoutTests/plugins/netscape-plugin-map-data-to-src.html = PASS TEXT
+BUG26195 MAC DEBUG : LayoutTests/plugins/netscape-plugin-setwindow-size.html = PASS TEXT
 BUG26195 MAC DEBUG : LayoutTests/http/tests/security/xssAuditor/script-tag-addslashes-single-quote.html = PASS TIMEOUT
 
 // expected test failures (passed in roll to WebKit r50313)
 BUG_HAMAJI : LayoutTests/fast/css/counters/invalidate-cached-counter-node.html = PASS FAIL
 
 // ==== WebKit roll 50258:50313 ====
 // --- Linux ---
 // Expected to fail since roll 50101:50158, but passed in roll to 50313 (47):
 // Best guesses for culprit WebKit patches are 50108, 50115, and 50259.
 BUG26291 LINUX DEBUG : LayoutTests/editing/deleting/5026848-2.html = FAIL
@@ skipping 44 matching lines @@
 BUG26291 MAC : LayoutTests/fast/text/drawBidiText.html = IMAGE
 BUG26291 MAC : LayoutTests/transforms/2d/hindi-rotated.html = IMAGE
 
 // WebKit roll 50313:50324
 BUG_ROLANDSTEINER MAC LINUX : LayoutTests/fast/block/float/float-in-float-hit-testing.html = IMAGE
 BUG_ROLANDSTEINER LINUX : LayoutTests/fast/events/click-focus-anchor.html = TEXT
 BUG_ROLANDSTEINER MAC : LayoutTests/fast/events/click-focus-anchor.html = TEXT
 BUG_ROLANDSTEINER MAC : LayoutTests/http/tests/plugins/interrupted-get-url.html = TEXT
 BUG_ROLANDSTEINER WIN : LayoutTests/fast/events/click-focus-anchor.html = TEXT
 BUG_ROLANDSTEINER WIN : LayoutTests/fast/block/float/float-in-float-hit-testing.html = IMAGE
-BUG9798 WIN DEBUG : LayoutTests/dom/html/level2/html/HTMLAppletElement01.html = PASS TIMEOUT
-BUG24182 WIN RELEASE SLOW : LayoutTests/dom/html/level2/html/HTMLAppletElement01.html = PASS
+BUG9798 WIN : LayoutTests/dom/html/level2/html/HTMLAppletElement01.html = PASS TIMEOUT
+
+// Flaky since at least WebKit 50258.
+BUG9798 WIN DEBUG : LayoutTests/media/video-empty-source.html = IMAGE PASS
+BUG9798 WIN MAC RELEASE : LayoutTests/fast/dom/defaultView.html = TEXT PASS
+BUG9798 WIN RELEASE : LayoutTests/http/tests/navigation/no-referrer-reset.html = TIMEOUT PASS
 
 // Turned flaky at WebKit 50325:50358
 BUG_SENORBLANCO WIN DEBUG : LayoutTests/fast/css/last-of-type-pseudo-class.html = FAIL PASS
 
 // WebKit 50358:50395
 BUG_SENORBLANCO : LayoutTests/fast/text/international/thai-cursor-position.html = TEXT
 BUG_SENORBLANCO WIN : LayoutTests/transitions/multiple-background-size-transitions.html = TEXT
 BUG_SENORBLANCO LINUX : LayoutTests/svg/custom/clip-path-units-changes.svg = IMAGE
 
 // WebKit 50395:50407
@@ skipping 68 matching lines @@
 BUG_SENORBLANCO LINUX DEBUG : LayoutTests/tables/mozilla/bugs/bug46368-1.html = IMAGE+TEXT
 BUG_SENORBLANCO LINUX DEBUG : LayoutTests/tables/mozilla/bugs/bug46368-2.html = IMAGE+TEXT
 BUG_SENORBLANCO LINUX DEBUG : LayoutTests/tables/mozilla/bugs/bug50695-2.html = IMAGE+TEXT
 BUG_SENORBLANCO LINUX DEBUG : LayoutTests/webarchive/test-duplicate-resources.html = IMAGE+TEXT
 
 // WebKit 50407:50416
 BUG_SENORBLANCO : LayoutTests/accessibility/aria-controls-with-tabs.html = TEXT
 BUG_SENORBLANCO : LayoutTests/accessibility/aria-tab-roles.html = TEXT
 BUG_SENORBLANCO LINUX WIN : LayoutTests/svg/css/circle-in-mask-with-shadow.svg = IMAGE
 BUG_SENORBLANCO WIN : LayoutTests/svg/W3C-SVG-1.1/masking-intro-01-f.svg = IMAGE