Use better heuristic for maxcharwidth.

LayoutTests/TestExpectations

Index: LayoutTests/TestExpectations
diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
index 51184befd5ff43080f0e74f91266b61390d997d1..0c444570f607fb5d5d32696b2f331e3a46158c85 100644
--- a/LayoutTests/TestExpectations
+++ b/LayoutTests/TestExpectations
@@ -1322,6 +1322,133 @@ crbug.com/422199 ietestcenter/Javascript/15.2.3.4-1.html [ NeedsManualRebaseline
 
 crbug.com/424974 http/tests/appcache/different-https-origin-resource-main.html [ Failure ]
 
+crbug.com/420901 [ Linux ] css3/selectors3/html/css3-modsel-23.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/html/css3-modsel-24.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/html/css3-modsel-68.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/html/css3-modsel-69.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xhtml/css3-modsel-23.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xhtml/css3-modsel-24.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xhtml/css3-modsel-68.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xhtml/css3-modsel-69.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xml/css3-modsel-23.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xml/css3-modsel-24.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xml/css3-modsel-68.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] css3/selectors3/xml/css3-modsel-69.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/input/caret-at-the-edge-of-input.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/inserting/before-after-input-element.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/pasteboard/4806874.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/pasteboard/drop-text-without-selection.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/pasteboard/input-field-1.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/3690703-2.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/3690703.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/3690719.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/4975120.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/drag-select-1.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] editing/selection/move-left-right.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/css/line-height.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/css/text-overflow-input.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/events/autoscroll.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/events/context-no-deselect.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/basic-inputs.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/control-restrict-line-height.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/encoding-test.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/fieldset-align.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/form-element-geometry.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-align.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-bkcolor.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-default-bkcolor.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-disabled.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-focus.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-height.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-preventDefault.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-readonly.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-selection.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-visibility.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-appearance-width.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-baseline.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-disabled-color.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-double-click-selection-gap-bug.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-placeholder-visibility-1.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-placeholder-visibility-3.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-readonly-autoscroll.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-readonly-dimmed.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-readonly-empty.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-spaces.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-tab-shows-caret.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-table.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-click-inside.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-click-outside.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-double-click.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-drag-down.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-option-delete.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-scroll-left-on-blur.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-self-emptying-click.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-text-word-wrap.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-type-text-min-width.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-value.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/input-width.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/number/number-appearance-datalist.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/number/number-appearance-rtl.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/number/number-appearance-spinbutton-layer.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/placeholder-position.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/placeholder-pseudo-style.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/search-cancel-button-style-sharing.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/search-display-none-cancel-button.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/search-rtl.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/search-vertical-alignment.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/search/search-appearance-basic.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/tabbing-input-iframe.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/text-control-intrinsic-widths.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/text-style-color.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/text/text-appearance-basic.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/text/text-appearance-datalist.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/textfield-focus-ring.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/textfield-overflow.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/forms/visual-hebrew-text-field.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/html/details-no-summary4.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/html/details-open-javascript.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/html/details-open2.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/html/details-open4.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/lists/dynamic-marker-crash.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/repaint/multi-layout-one-frame.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/repaint/renderer-destruction-by-invalidateSelection-crash.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/repaint/search-field-cancel.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/repaint/subtree-root-skipped.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/replaced/replaced-breaking-mixture.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/replaced/replaced-breaking.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/table/colspanMinWidth-vertical.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/table/colspanMinWidth.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/table/spanOverlapRepaint.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/table/text-field-baseline.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/text/textIteratorNilRenderer.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] fast/transforms/transformed-focused-text-input.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] svg/custom/inline-svg-in-xhtml.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] svg/hixie/mixed/003.xml [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug1188.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug12384.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug18359.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug24200.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug2479-2.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug2479-3.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug2479-4.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug28928.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug4382.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug4527.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug46368-1.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug46368-2.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug51037.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug55545.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug59354.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug7342.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug96334.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/bugs/bug99948.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/dom/tableDom.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla/other/move_row.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla_expected_failures/bugs/bug2479-5.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] tables/mozilla_expected_failures/bugs/bug92647-1.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] transforms/3d/general/perspective-non-layer.html [ NeedsRebaseline ]
+crbug.com/420901 [ Linux ] virtual/textblob/fast/text/textIteratorNilRenderer.html [ NeedsRebaseline ]
+
 # Timing out on WinXP after r183502
 crbug.com/422278 [ XP ] http/tests/serviceworker/fetch-canvas-tainting.html [ Pass Timeout ]
 crbug.com/422278 [ Win ] http/tests/serviceworker/fetch-cors-xhr.html [ Pass Timeout ]