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[css-flexbox] Don't cache definiteness when there's an override conta…
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…iner height

See stack trace below. We set the override container logical height to -1
for the initial layout of a flex item so that we compute the correct size
for min-height. However, that messes with our cache for definite heights
because we would always set it to indefinite in such a case.

Instead, just don't cache these values. That way we will later compute the right
thing for resolving flex-basis, etc.

(FlexNG can't come soon enough...)

 #0  blink::LayoutBox::ContainingBlockLogicalHeightForPercentageResolution (this=0x3dda8d434198,
    out_cb=0x7f6e7d42d8c0, out_skipped_auto_height_containing_block=0x0)
    at ../../third_party/blink/renderer/core/layout/layout_box.cc:3833
 #1  0x00007f6ee84ad0a1 in blink::LayoutFlexibleBox::MainAxisLengthIsDefinite (this=0x3dda8d434010,
    child=..., flex_basis=Length(0%, Percent), add_to_cb=false)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:762
 #2  0x00007f6ee84af930 in blink::LayoutFlexibleBox::MainSizeIsDefiniteForPercentageResolution (
    this=0x3dda8d434010, child=...)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:1125
 #3  0x00007f6ee84ad7f5 in blink::LayoutFlexibleBox::UseOverrideLogicalHeightForPerentageResolution (
    this=0x3dda8d434010, child=...)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:1137
 #4  0x00007f6ee83f2b9d in blink::LayoutBlock::AvailableLogicalHeightForPercentageComputation (
    this=0x3dda8d434198) at ../../third_party/blink/renderer/core/layout/layout_block.cc:2333
 #5  0x00007f6ee845e745 in blink::LayoutBox::ContainingBlockLogicalHeightForPercentageResolution (
    this=0x3dda8d4243d0, out_cb=0x0, out_skipped_auto_height_containing_block=0x0)
    at ../../third_party/blink/renderer/core/layout/layout_box.cc:3830
 #6  0x00007f6ee86dcc5c in blink::LayoutBoxUtils::AvailableLogicalHeight (box=..., cb=0x3dda8d434198)
    at ../../third_party/blink/renderer/core/layout/ng/layout_box_utils.cc:64
 #7  0x00007f6ee86eafea in blink::LayoutNGMixin<blink::LayoutBlockFlow>::ComputeIntrinsicLogicalWidths (
    this=0x3dda8d4243d0, min_logical_width=0px, max_logical_width=0px)
    at ../../third_party/blink/renderer/core/layout/ng/layout_ng_mixin.cc:48
 #8  0x00007f6ee83ef53a in blink::LayoutBlock::ComputePreferredLogicalWidths (this=0x3dda8d4243d0)
    at ../../third_party/blink/renderer/core/layout/layout_block.cc:1509
 #9  0x00007f6ee8451f01 in blink::LayoutBox::MaxPreferredLogicalWidth (this=0x3dda8d4243d0)
    at ../../third_party/blink/renderer/core/layout/layout_box.cc:1395
 #10 0x00007f6ee84adba2 in blink::LayoutFlexibleBox::ComputeInnerFlexBaseSizeForChild (this=0x3dda8d434198,
    child=..., main_axis_border_and_padding=0px, child_layout_type=blink::LayoutFlexibleBox::kForceLayout)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:890
 #11 0x00007f6ee84ae5d1 in blink::LayoutFlexibleBox::ConstructAndAppendFlexItem (this=0x3dda8d434198,
    algorithm=0x7f6e7d42ed70, child=..., layout_type=blink::LayoutFlexibleBox::kForceLayout)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:1203
 #12 0x00007f6ee84aa27b in blink::LayoutFlexibleBox::LayoutFlexItems (this=0x3dda8d434198,
    relayout_children=true, layout_scope=...)
    at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:934
 #13 0x00007f6ee84a9cff in blink::LayoutFlexibleBox::UpdateBlockLayout (this=0x3dda8d434198,
    relayout_children=true) at ../../third_party/blink/renderer/core/layout/layout_flexible_box.cc:369

Bug: 1019138
Change-Id: Ie94e69a5f3fe6accc3623d358315b174088d5597
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1902514
Commit-Queue: David Grogan <[email protected]>
Auto-Submit: Christian Biesinger <[email protected]>
Reviewed-by: David Grogan <[email protected]>
Cr-Commit-Position: refs/heads/master@{#713296}
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cbiesinger authored and chromium-wpt-export-bot committed Nov 7, 2019
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37 changes: 37 additions & 0 deletions css/css-flexbox/percentage-heights-009.html
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<!DOCTYPE html>
<title>height: 100% should not be considered indefinite on a second flex item (triggers an obscure bug in Blink)</title>
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#definite-sizes" />
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1019138" />
<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
<style type="text/css">
.container {
height: 100px;
width: 100px;
}
.flexbox {
background: red;
display: flex;
flex-direction: column;
height: 100%;
}
.first-item {
background: green;
display: flex;
}
.second-item {
/* This should not be considered indefinite */
height: 100%;
background: green;
}
</style>

<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="container">
<div class="flexbox">
<div class="first-item">
<div style="width: 100px; height: 20px;"></div>
</div>
<div class="second-item">
</div>
</div>
</div>

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