Support control clipping for PaintLayers.

third_party/WebKit/LayoutTests/TestExpectations

 # Intentional failures to test the layout test system.
 Bug(intentional) [ Android Linux Win Mac10.10 Mac10.11 Retina ] harness-tests/crash.html [ Crash ]
 crbug.com/644303 [ Mac10.9 ] harness-tests/crash.html [ Crash Timeout ]
 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.
 
@@ skipping 654 matching lines @@
 crbug.com/432129 fast/html/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/248938 virtual/threaded/transitions/change-duration-during-transition.html [ Pass Failure ]
 crbug.com/638693 virtual/threaded/animations/display-inline-style-adjust.html [ Pass Crash Failure ]
 crbug.com/421283 fast/html/marquee-scrollamount.html [ Pass Failure ]
 
+crbug.com/671864 fast/forms/button-positioned.html [ NeedsRebaseline ]
+crbug.com/671864 fast/forms/text/input-appearance-preventDefault.html [ NeedsRebaseline ]
+
 crbug.com/659123 [ Mac ] fast/css/text-overflow-ellipsis-button.html [ Pass Failure ]
 
 # TODO(oshima): Mac Android are currently not supported.
 crbug.com/567837 [ Mac Android ] virtual/scalefactor200withzoom/fast/hidpi/static [ Skip ]
 
 # Mac does not support fractional scale factor.
 crbug.com/567837 [ Mac ] virtual/scalefactor150/fast/hidpi/static [ Skip ]
 
 # TODO(oshima): Move the event scaling code to eventSender and remove this.
 crbug.com/567837 virtual/scalefactor200/fast/hidpi/static/mousewheel-scroll-amount.html [ Skip ]
@@ skipping 19 matching lines @@
 crbug.com/498539 [ Win7 ] inspector/sources/debugger-pause/debugger-eval-on-call-frame-inside-iframe.html [ Failure Pass ]
 crbug.com/498539 [ Mac10.9 ] inspector/console/console-uncaught-exception.html [ Failure Pass ]
 
 crbug.com/498539 [ Win7 ] inspector/console/console-dir-es6.html [ Failure Pass ]
 crbug.com/498539 [ Win7 ] inspector/elements/styles-4/styles-update-from-js.html [ Crash Pass ]
 
 crbug.com/596968 [ Win ] inspector-protocol/input/eventTimestamp.html [ Failure Pass ]
 
 crbug.com/487281 [ Mac ] fast/forms/select/menulist-narrow-width.html [ Failure ]
 
+crbug.com/671864 fast/forms/number/number-appearance-spinbutton-layer.html [ NeedsRebaseline ]
+crbug.com/671864 fast/forms/placeholder-position.html [ NeedsRebaseline ]
+crbug.com/671864 fast/forms/select-popup/popup-menu-appearance-transform.html [ NeedsRebaseline ]
+crbug.com/671864 fast/multicol/multicol-with-child-renderLayer-for-input.html [ NeedsRebaseline ]
+
 crbug.com/543110 [ Mac ] fast/text/international/text-shaping-arabic.html [ Failure ]
 
 # This directly has manual tests that don't have to run with run-webkit-tests
 crbug.com/359838 http/tests/ManualTests/ [ Skip ]
 crbug.com/359838 virtual/mojo-loading/http/tests/ManualTests/ [ Skip ]
 
 # Will be re-enabled and rebaselined once we remove the '--enable-file-cookies' flag.
 crbug.com/470482 fast/cookies/local-file-can-set-cookies.html [ Skip ]
 
 # Text::inDocument() returns false but should not.
@@ skipping 1577 matching lines @@
 crbug.com/680050 inspector/sources/debugger-ui/watch-expressions-panel-switch.html [ Pass Timeout ]
 
 # When WebAssembly is exposed in V8 (soon), this test has the wrong number of expected Object.getOwnPropertyNames() for global object.
 crbug.com/575167 external/wpt/html/browsers/origin/cross-origin-objects/cross-origin-objects-exceptions.html [ NeedsManualRebaseline ]
 
 crbug.com/681468 fast/forms/suggestion-picker/date-suggestion-picker-appearance-zoom125.html [ Failure Pass ]
 crbug.com/681468 fast/forms/suggestion-picker/date-suggestion-picker-appearance-zoom200.html [ Failure Pass ]
 
 crbug.com/681471 paint/invalidation/media-audio-no-spurious-repaints.html [ Failure Pass Timeout ]
 crbug.com/681471 virtual/stable/paint/invalidation/media-audio-no-spurious-repaints.html [ Failure Pass Timeout ]