input's placeholder is inconsistently laid out

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 2344 matching lines @@
         // https://bugs.webkit.org/show_bug.cgi?id=46418
         bool inHorizontalBox = parent()->isDeprecatedFlexibleBox() && parent()->style()->boxOrient() == HORIZONTAL;
         bool stretching = parent()->style()->boxAlign() == BSTRETCH;
         bool treatAsReplaced = shouldComputeSizeAsReplaced() && (!inHorizontalBox || !stretching);
         bool checkMinMaxHeight = false;
 
         // The parent box is flexing us, so it has increased or decreased our height.  We have to
         // grab our cached flexible height.
         // FIXME: Account for writing-mode in flexible boxes.
         // https://bugs.webkit.org/show_bug.cgi?id=46418
-        if (hasOverrideLogicalContentHeight() && (parent()->isFlexibleBoxIncludingDeprecated() || parent()->isLayoutGrid())) {
+        if (hasOverrideLogicalContentHeight()) {
             LayoutUnit contentHeight = overrideLogicalContentHeight();
             if (parent()->isLayoutGrid() && style()->logicalMinHeight().isAuto() && style()->overflowY() == OVISIBLE) {
                 ASSERT(style()->logicalHeight().isAuto());
                 LayoutUnit minContentHeight = computeContentLogicalHeight(MinSize, Length(MinContent), computedValues.m_extent - borderAndPaddingLogicalHeight());
                 contentHeight = std::max(contentHeight, constrainContentBoxLogicalHeightByMinMax(minContentHeight, computedValues.m_extent - borderAndPaddingLogicalHeight()));
             }
             h = Length(contentHeight, Fixed);
         } else if (treatAsReplaced) {
             h = Length(computeReplacedLogicalHeight(), Fixed);
         } else {
@@ skipping 2463 matching lines @@
     StyleImage* borderImage = style()->borderImage().image();
     return borderImage && borderImage->canRender() && borderImage->isLoaded();
 }
 
 ShapeOutsideInfo* LayoutBox::shapeOutsideInfo() const
 {
     return ShapeOutsideInfo::isEnabledFor(*this) ? ShapeOutsideInfo::info(*this) : nullptr;
 }
 
 } // namespace blink