[css-flexbox] Use correct aspect ratio for min-size: auto

third_party/WebKit/Source/core/layout/LayoutFlexibleBox.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 109 matching lines @@
     LayoutUnit flowAwarePaddingEnd() const;
     LayoutUnit flowAwarePaddingBefore() const;
     LayoutUnit flowAwarePaddingAfter() const;
     LayoutUnit flowAwareMarginStartForChild(const LayoutBox& child) const;
     LayoutUnit flowAwareMarginEndForChild(const LayoutBox& child) const;
     LayoutUnit flowAwareMarginBeforeForChild(const LayoutBox& child) const;
     LayoutUnit crossAxisMarginExtentForChild(const LayoutBox& child) const;
     LayoutUnit crossAxisScrollbarExtent() const;
     LayoutUnit crossAxisScrollbarExtentForChild(const LayoutBox& child) const;
     LayoutPoint flowAwareLocationForChild(const LayoutBox& child) const;
+    bool useChildAspectRatio(const LayoutBox& child) const;
+    LayoutUnit computeMainSizeFromAspectRatioUsing(const LayoutBox& child, Length crossSizeLength) const;
     void setFlowAwareLocationForChild(LayoutBox& child, const LayoutPoint&);
     void adjustAlignmentForChild(LayoutBox& child, LayoutUnit);
     ItemPosition alignmentForChild(const LayoutBox& child) const;
     LayoutUnit mainAxisBorderAndPaddingExtentForChild(const LayoutBox& child) const;
     LayoutUnit computeInnerFlexBaseSizeForChild(LayoutBox& child, ChildLayoutType = LayoutIfNeeded);
     bool mainAxisLengthIsDefinite(const LayoutBox& child, const Length& flexBasis) const;
+    bool crossAxisLengthIsDefinite(const LayoutBox& child, const Length& flexBasis) const;
     bool childFlexBaseSizeRequiresLayout(const LayoutBox& child) const;
     bool needToStretchChildLogicalHeight(const LayoutBox& child) const;
     bool childHasIntrinsicMainAxisSize(const LayoutBox& child) const;
     EOverflow mainAxisOverflowForChild(const LayoutBox& child) const;
     EOverflow crossAxisOverflowForChild(const LayoutBox& child) const;
 
     void layoutFlexItems(bool relayoutChildren, SubtreeLayoutScope&);
     LayoutUnit autoMarginOffsetInMainAxis(const OrderedFlexItemList&, LayoutUnit& availableFreeSpace);
     void updateAutoMarginsInMainAxis(LayoutBox& child, LayoutUnit autoMarginOffset);
     bool hasAutoMarginsInCrossAxis(const LayoutBox& child) const;
     bool updateAutoMarginsInCrossAxis(LayoutBox& child, LayoutUnit availableAlignmentSpace);
     void repositionLogicalHeightDependentFlexItems(Vector<LineContext>&);
     LayoutUnit clientLogicalBottomAfterRepositioning();
 
     LayoutUnit availableAlignmentSpaceForChild(LayoutUnit lineCrossAxisExtent, const LayoutBox& child);
     LayoutUnit availableAlignmentSpaceForChildBeforeStretching(LayoutUnit lineCrossAxisExtent, const LayoutBox& child);
     LayoutUnit marginBoxAscentForChild(const LayoutBox& child);
 
     LayoutUnit computeChildMarginValue(Length margin);
     void prepareOrderIteratorAndMargins();
     LayoutUnit adjustChildSizeForMinAndMax(const LayoutBox& child, LayoutUnit childSize);
+    LayoutUnit adjustChildSizeForAspectRatioCrossAxisMinAndMax(const LayoutBox& child, LayoutUnit childSize);

[leviw_travelin_and_unemployed, 2016/01/28 00:37:59]

Whoa... That's a mouthful.

[cbiesinger, 2016/01/28 00:42:48]

Couldn't come up with a better name :/

     // The hypothetical main size of an item is the flex base size clamped according to its min and max main size properties
     bool computeNextFlexLine(OrderedFlexItemList& orderedChildren, LayoutUnit& sumFlexBaseSize, double& totalFlexGrow, double& totalFlexShrink, double& totalWeightedFlexShrink, LayoutUnit& sumHypotheticalMainSize, bool relayoutChildren);
 
     bool resolveFlexibleLengths(FlexSign, const OrderedFlexItemList&, LayoutUnit availableFreeSpace, LayoutUnit& remainingFreeSpace, double& totalFlexGrow, double& totalFlexShrink, double& totalWeightedFlexShrink, InflexibleFlexItemSize&, Vector<LayoutUnit, 16>& childSizes);
     void freezeViolations(const Vector<Violation>&, LayoutUnit& availableFreeSpace, double& totalFlexGrow, double& totalFlexShrink, double& totalWeightedFlexShrink, InflexibleFlexItemSize&);
 
     void resetAutoMarginsAndLogicalTopInCrossAxis(LayoutBox& child);
     void setOverrideMainAxisSizeForChild(LayoutBox& child, LayoutUnit childPreferredSize);
     void prepareChildForPositionedLayout(LayoutBox& child, LayoutUnit mainAxisOffset, LayoutUnit crossAxisOffset, PositionedLayoutMode);
     size_t numberOfInFlowPositionedChildren(const OrderedFlexItemList&) const;
@@ skipping 12 matching lines @@
 
     mutable OrderIterator m_orderIterator;
     int m_numberOfInFlowChildrenOnFirstLine;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutFlexibleBox, isFlexibleBox());
 
 } // namespace blink
 
 #endif // LayoutFlexibleBox_h