Enable slimming paint by default (for trybots only)

sp/gen-expectations

Index: sp/gen-expectations
diff --git a/sp/gen-expectations b/sp/gen-expectations
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+#!/bin/sh
+cd `dirname $0`/../LayoutTests
+
+cat >SlimmingPaintExpectations <<END
+# Slimming paint overriding expectations (to change, modify sp/gen-expectations)
+Bug(0) virtual/slimmingpaint/ [ Skip ]
+Bug(0) virtual/stable/ [ Skip ]
+Bug(0) virtual/deferred/ [ Skip ]
+
+crbug.com/486830 Bug(try) virtual/display_list_2d_canvas/fast/canvas/canvas-scale-drawImage-shadow.html [ Failure ]
+crbug.com/486920 Bug(try) plugins/destroy-on-setwindow.html [ Crash ]
+crbug.com/486771 Bug(try) virtual/display_list_2d_canvas/fast/canvas/canvas-createImageBitmap-webgl.html [ Crash ]
+
+# Fixed 6/9 crbug.com/496779 Bug(try) inspector/tracing/paint-profiler-update.html [ Timeout ]
+# Fixed 6/8 crbug.com/496539 Bug(try) plugins/webview-plugin-lifecycle.html [ Crash ]
+# Fixed 6/1 crbug.com/486845 Bug(try) virtual/display_list_2d_canvas/fast/canvas/canvas-composite-repaint-by-all-imagesource.html [ Crash ]
+# Fixed crbug.com/486767 Bug(try) inspector/tracing/frame-model-instrumentation.html [ Crash ]
+# Fixed crbug.com/486767 Bug(try) inspector/tracing/layer-tree.html [ Crash ]
+# Fixed crbug.com/486767 Bug(try) inspector/tracing/paint-command-log-nodes.html [ Crash ]
+# Fixed 5/22 crbug.com/486774 Bug(try) editing/selection/select-all-iframe-crash.html [ Crash ]
+# Fixed 5/22 crbug.com/486784 Bug(try) scrollingcoordinator/non-fast-scrollable-region-nested.html [ Crash ]
+# Fixed crbug.com/486825 Bug(try) editing/selection/extend-by-character-002.html [ ImageOnlyFailure ]
+
+# Under-invalidations
+# Fixed crbug.com/486790 Bug(try) virtual/rootlayerscrolls/fast/scrolling/background-paint-scrolled.html [ ImageOnlyFailure Crash ]
+# Fixed crbug.com/486921 Bug(try) [ Mac ] virtual/prefer_compositing_to_lcd_text/compositing/overflow/do-not-paint-outline-into-composited-scrolling-contents.html [ Crash ]
+
+# Fixed 5/22 crbug.com/471100 virtual/threaded/printing/webgl-repeated-printing-preservedrawingbuffer.html [ Crash ]
+# Fixed 5/22 crbug.com/471100 virtual/threaded/printing/webgl-repeated-printing.html [ Crash ]
+
+crbug.com/382491 css3/blending/background-blend-mode-overlapping-accelerated-elements.html [ ImageOnlyFailure ]
+crbug.com/382491 editing/selection/transformed-selection-rects.html [ ImageOnlyFailure ]
+crbug.com/382491 transforms/svg-vs-css.xhtml [ ImageOnlyFailure ]
+crbug.com/382491 virtual/threaded/printing/iframe-print.html [ ImageOnlyFailure ]
+
+# Flakiness due to non-SP bugs. Some are in LayoutTests/FlakyTests.
+# Don't know why our try jobs pick up them.
+Bug(0) [ Win ] fast/dynamic/first-letter-display-change.html [ Pass ImageOnlyFailure ]
+
+# Expected repaint test result differences.
+Bug(0) css3/flexbox/repaint-column-reverse.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint-during-resize-no-flex.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint-on-layout.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint-on-margin-change.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint-opacity-change.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint-rtl-column.html [ NeedsRebaseline ]
+Bug(0) css3/flexbox/repaint.html [ NeedsRebaseline ]
+Bug(0) editing/selection/repaint-rect-for-vertical-writing-mode-with-positioned-root.html [ NeedsRebaseline ]
+Bug(0) media/audio-repaint.html [ NeedsRebaseline ]
+Bug(0) media/video-paint-invalidation.html [ NeedsRebaseline ]
+Bug(0) transforms/transform-focus-ring-repaint.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/scrolling-without-painting.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/text-color-change.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/text-match-highlight.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/updating-scrolling-container-and-content.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/updating-scrolling-container.html [ NeedsRebaseline ]
+Bug(0) virtual/prefer_compositing_to_lcd_text/compositing/overflow/updating-scrolling-content.html [ NeedsRebaseline ]
+
+# The following are generated from LayoutTests/TestExpectations by sp/gen-expectations
+END
+
+grep "virtual/slimmingpaint/.*\..*" TestExpectations | grep -v Skip |
+    sed 's"virtual/slimmingpaint/""' >> SlimmingPaintExpectations