Add some flaky layout tests and remove some consistently passing ones....

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 1364 matching lines @@
 BUG10343 LINUX WIN : LayoutTests/fast/text/cg-vs-atsui.html = FAIL
 
 // Started timing out with agl's complext text change.  Page is verrry slow.
 BUG10343 SKIP LINUX : LayoutTests/fast/text/large-text-composed-char.html = TIMEOUT FAIL
 
 // Missing text -- slow font path unimplemented?
 BUG10344 LINUX : LayoutTests/fast/text/should-use-atsui.html = FAIL
 
 // We print to stderr when a failure happens while importing XSL;
 // should disable this in libxml.
-BUG10347 MAC LINUX : LayoutTests/fast/xsl/transform-xhr-doc.xhtml = FAIL
+BUG10347 MAC : LayoutTests/fast/xsl/transform-xhr-doc.xhtml = FAIL
 
 // Linux pixeltest failure: Failing to apply style
 BUG10349 LINUX : LayoutTests/fast/forms/select-style.html = FAIL
 
 // Linux pixeltest failure: The text suggests that the radios should not
 // overlap, but it's very close and quite different from the Windows version
 BUG10350 LINUX : LayoutTests/fast/replaced/width100percent-radio.html = FAIL
 
 // Linux pixel tests: the select arrow is clipping wrong on one line.
 BUG10666 LINUX : chrome/fast/forms/basic-selects.html = FAIL
 
 // These tests are marked as failing on Linux because they depend on QuickTime.
 // See the bug for more discussion.
 BUG15797 LINUX : LayoutTests/fast/dom/object-embed-plugin-scripting.html = FAIL
 BUG15797 LINUX : LayoutTests/plugins/embed-attributes-setting.html = FAIL
 
 // Depends on plugin support.
 BUG10351 MAC : LayoutTests/fast/dom/object-embed-plugin-scripting.html = FAIL
 
 BUG10351 MAC : LayoutTests/tables/mozilla_expected_failures/bugs/bug8499.html = FAIL
 // Skip because we throw an exception before we get to dumpAsText.
 BUG10351 SKIP MAC : LayoutTests/http/tests/plugins/geturlnotify-from-npp-destroystream.html = FAIL
 BUG10351 MAC : LayoutTests/plugins/embed-attributes-setting.html = FAIL
 BUG10351 MAC : LayoutTests/plugins/inner-html-display-none.html = FAIL
 BUG10351 MAC : LayoutTests/plugins/invoke.html = PASS FAIL
 BUG10351 MAC : LayoutTests/plugins/mouse-events.html = FAIL
+BUG10351 MAC DEBUG : LayoutTests/http/tests/plugins/npapi-response-headers.html = PASS FAIL
 // Skip because we throw an exception before we get to dumpAsText.
 BUG10667 SKIP MAC : chrome/plugins/get-url-with-blank-target.html = FAIL
 BUG10667 MAC SLOW : chrome/plugins/multiple-plugins.html = FAIL
 BUG10667 MAC : chrome/plugins/return-npobject.html = FAIL
 BUG10667 MAC SLOW : LayoutTests/plugins/iframe-shims.html = FAIL
 
 // NEW FOR MERGE 36102:37604
 
 // New test. We should fix it, but it doesn't need to block the current release
 BUG24227 : LayoutTests/fast/js/arguments.html = FAIL
@@ skipping 73 matching lines @@
 // event failures
 BUG10367 MAC : LayoutTests/fast/events/attempt-scroll-with-no-scrollbars.html = CRASH FAIL
 
 // selection
 BUG10369 MAC : LayoutTests/editing/selection/5109817.html = FAIL
 BUG10369 LINUX : LayoutTests/editing/selection/5354455-2.html = FAIL
 
 // incorrect layout
 BUG10370 MAC : LayoutTests/fast/css/font-weight-1.html = FAIL
 
-// Error from CGImageSourceUpdateData but everything else is correct.
-BUG10373 MAC : LayoutTests/http/tests/multipart/invalid-image-data.html = FAIL
-
 // Not really sure why these are failing at the moment
 BUG10376 MAC : LayoutTests/fast/dom/isindex-002.html = FAIL
 
 // These two have a different object type in the dom dump. Plugin-related.
 // Ignored on Win/Linux because they rely on QT to provide a TIFF decoder.
 BUG10378 MAC : LayoutTests/fast/images/embed-image.html = FAIL CRASH
 BUG10378 MAC : LayoutTests/fast/images/object-image.html = FAIL CRASH
 
 BUG10381 LINUX RELEASE : LayoutTests/svg/W3C-SVG-1.1/animate-elem-03-t.svg = FAIL
 BUG10381 LINUX DEBUG SLOW : LayoutTests/svg/W3C-SVG-1.1/animate-elem-03-t.svg = FAIL
@@ skipping 768 matching lines @@
 // Merge 39744:39913? - regressions
 BUG10403 : LayoutTests/http/tests/misc/uncacheable-script-repeated.html = TIMEOUT PASS
 BUG10403 LINUX : LayoutTests/svg/custom/animate-path-morphing.svg = FAIL PASS
 BUG10403 LINUX : LayoutTests/svg/custom/circular-marker-reference-1.svg = FAIL PASS
 BUG10403 LINUX : LayoutTests/transitions/change-values-during-transition.html = FAIL PASS
 
 // might need to be rebaselined in win, 'DRAFT' rendering incorrect before
 BUG10405 WIN : LayoutTests/svg/custom/struct-use-09-b.svg = FAIL
 
 // Pass locally but fail on the bots.
-BUG10409 MAC LINUX : LayoutTests/svg/custom/clip-path-units-changes.svg = FAIL
+BUG10409 LINUX : LayoutTests/svg/custom/clip-path-units-changes.svg = FAIL
 
 // intermittent failures on the buildbot
 BUG10411 : LayoutTests/svg/custom/gradient-stop-style-change.svg = FAIL PASS
 
 // New tests added in http://trac.webkit.org/changeset/40424
 // Renders the width of "600" off by 3.  Looks OK but could still be a bug
 // that we shouldn't rebaseline.
 BUG10417 LINUX : LayoutTests/svg/W3C-SVG-1.1/text-fonts-02-t.svg = FAIL
 BUG10417 LINUX : LayoutTests/svg/text/text-fonts-02-t.svg = FAIL
 
@@ skipping 338 matching lines @@
 // New failures from WebKit Merge 42671:42725
 BUG10861 MAC : LayoutTests/http/tests/plugins/post-url-file.html = PASS FAIL
 
 // New failures from WebKit merge 42725:42805
 // WebKit change http://trac.webkit.org/changeset/42785
 // added a test which submits a form and then uses history.back()
 // to go back. in test_shell history.back() does not go back,
 // so the test timeouts.
 BUG11001 LINUX MAC WIN : LayoutTests/http/tests/history/back-to-post.php = TIMEOUT
 
-// New failures from WebKit merge 42725:42805
-// Reasons unknown..
-BUG11012 LINUX MAC : LayoutTests/http/tests/security/xss-DENIED-xml-external-entity.xhtml = FAIL
-
 // Need Linux rebaselines from WebKit Merge 42805:42932
 BUG11123 LINUX : LayoutTests/editing/inserting/4960120-1.html = FAIL
 BUG11123 LINUX : LayoutTests/fast/forms/textarea-scrollbar.html = FAIL
 BUG11123 LINUX : LayoutTests/fast/forms/textarea-scrolled-type.html = FAIL
 
 // Regressions from WebKit Merge 42932:42994
 BUG11239 MAC : LayoutTests/svg/custom/js-late-marker-and-object-creation.svg = FAIL PASS
 
 // Regressions from WebKit Merge 42932:42994 due to text metric changes.
 BUG11251 WIN : LayoutTests/fast/forms/textarea-width.html = FAIL
@@ skipping 107 matching lines @@
 BUG15217 : LayoutTests/fast/js/dictionary-no-cache.html = FAIL
 BUG15217 MAC : LayoutTests/fast/js/switch-behaviour.html = FAIL
 
 // WebKit 45086:45111
 BUG15270 RELEASE : LayoutTests/fast/js/excessive-comma-usage.html = FAIL
 BUG15270 DEBUG SLOW : LayoutTests/fast/js/excessive-comma-usage.html = FAIL
 
 // WebKit 45270:45287
 BUG15490 LINUX : LayoutTests/editing/deleting/25322-1.html = PASS FAIL CRASH
 
-// Flaky for a while on DEBUG; also related to BUG17974
-BUG15267 WIN LINUX DEBUG : LayoutTests/transitions/cancel-transition.html = PASS FAIL
+// Flaky for a while; also related to BUG17974
+BUG15267 WIN LINUX : LayoutTests/transitions/cancel-transition.html = PASS FAIL
 
 // WebKit 45431:45444
 BUG10384 MAC : LayoutTests/fast/events/frame-tab-focus.html = CRASH FAIL
 BUG11613 LINUX : LayoutTests/fast/forms/tabbing-input-iframe.html = FAIL
 BUG11613 LINUX RELEASE : LayoutTests/fast/overflow/scrollRevealButton.html = FAIL
 BUG11613 LINUX DEBUG SLOW : LayoutTests/fast/overflow/scrollRevealButton.html = FAIL
 
 // WebKit tests regressions 20529:20532
 BUG16675 MAC : LayoutTests/fast/dynamic/flash-replacement-test.html = FAIL
-BUG16675 MAC : LayoutTests/fast/loader/loadInProgress.html = FAIL
 // This started crashing regularly as a result of r28798 (see bug 24720).
 BUG16675 MAC DEBUG : LayoutTests/plugins/return-error-from-new-stream-callback-in-full-frame-plugin.html = PASS FAIL
 
 // WebKit merge 42738:45840
 // New test, needs baseline.
 BUG16690 SKIP MAC : LayoutTests/fast/text/international/khmer-selection.html = FAIL
 
 // WebKit merge 42738:45840
 // New tests, need baseline.
 BUG16240 MAC WIN : LayoutTests/http/tests/cache/subresource-expiration.html = PASS TIMEOUT
@@ skipping 176 matching lines @@
 // Fails because we don't support layoutTestController.addUserStyleSheet().
 BUG21439 : LayoutTests/userscripts/simple-stylesheet.html = FAIL
 
 // Need investigation after we enable file URL universal access in test shell.
 BUG24233 WIN LINUX : LayoutTests/editing/selection/drag-in-iframe.html = FAIL
 
 // New test added in r48318 (GoogleURL bug)
 BUG21764 : LayoutTests/fast/forms/ValidityState-typeMismatch-url.html = FAIL
 
 // WK roll to 48371
-BUG21841 MAC RELEASE : LayoutTests/plugins/destroy-during-npp-new.html = FAIL
 BUG21841 MAC DEBUG SLOW : LayoutTests/plugins/destroy-during-npp-new.html = FAIL CRASH
 BUG21841 WIN DEBUG : LayoutTests/plugins/destroy-during-npp-new.html = CRASH PASS
 
 BUG25616 WIN : LayoutTests/fast/overflow/overflow-float-stacking.html = FAIL
 
 // 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
@@ skipping 143 matching lines @@
 // hclam to add expected results.
 BUG_HCLAM SKIP : LayoutTests/media/video-volume-slider.html = FAIL
 
 // New flaky crashing tests
 BUG25747 WIN : LayoutTests/fast/xmlhttprequest/xmlhttprequest-invalid-values.html = CRASH PASS
 BUG25747 MAC : LayoutTests/fast/forms/tabbing-input-iframe.html = CRASH PASS
 BUG25747 LINUX : LayoutTests/fast/overflow/scroll-vertical-not-horizontal.html = CRASH PASS
 
 // WebKit roll 50073:50101
 // Test added by Ryosuke: http://trac.webkit.org/changeset/50090
-BUG25889 MAC DEBUG : LayoutTests/fast/forms/select-empty-option-height.html = TIMEOUT
+BUG25889 MAC DEBUG : LayoutTests/fast/forms/select-empty-option-height.html = PASS TIMEOUT
 
 // WebKit roll 50101:50158
 BUG_JORLOW : LayoutTests/fast/css/getComputedStyle/computed-style-without-renderer.html = FAIL CRASH
 BUG_JORLOW LINUX DEBUG : LayoutTests/fast/css/getComputedStyle/computed-style-font-family.html = FAIL
 BUG_JORLOW : LayoutTests/fast/css/getComputedStyle/computed-style.html = FAIL CRASH
 BUG_JORLOW RELEASE LINUX WIN : LayoutTests/svg/css/getComputedStyle-basic.xhtml = FAIL
 
 // More fallout from the above roll.
 BUG_JORLOW LINUX : LayoutTests/editing/deleting/5026848-2.html = FAIL
 BUG_JORLOW LINUX : LayoutTests/editing/deleting/5026848-3.html = FAIL
@@ skipping 71 matching lines @@
 BUG_JOTH LINUX WIN : LayoutTests/fast/css/text-input-with-webkit-border-radius.html = IMAGE+TEXT
 BUG_JORLOW WIN : chrome/fast/forms/basic-selects.html = IMAGE
 
 // WebKit roll 50248:50258
 BUG_ROLANDSTEINER : LayoutTests/accessibility/aria-option-role.html = TEXT
 BUG_ROLANDSTEINER LINUX : LayoutTests/fast/forms/select-empty-option-height.html = PASS TIMEOUT
 BUG_ROLANDSTEINER LINUX : LayoutTests/svg/custom/marker-default-width-height.svg = TEXT
 BUG_ROLANDSTEINER LINUX RELEASE : LayoutTests/fast/overflow/overflow_hidden.html = CRASH
 BUG_ROLANDSTEINER MAC : LayoutTests/css3/css3-modsel-33.html = TEXT
 BUG_ROLANDSTEINER MAC : chrome/plugins/script-object-invoke.html = TEXT