https://bugs.webkit.org/show_bug.cgi?id=99767

Reviewed by Levi Weintraub.

Currently baselinePostion, maxAscent and maxDescent are
LayoutUnits while ascent, descent and m_lineHeight are ints.
This can lead to subtle alignment and rounding problems.

Change baselinePosition and maxAscent/maxDescent to int to avoid
these issues.

Test: fast/sub-pixel/replaced-element-baseline.html

* editing/FrameSelection.cpp:
(WebCore::repaintRectForCaret):
Inflate Y dimension just like we do for X to ensure that the
repaint rect fully contains the caret.

* rendering/InlineBox.cpp:
(WebCore::InlineBox::baselinePosition):
* rendering/InlineBox.h:
(InlineBox):
* rendering/InlineFlowBox.cpp:
(WebCore::InlineFlowBox::adjustMaxAscentAndDescent):
(WebCore::InlineFlowBox::computeLogicalBoxHeights):
(WebCore::InlineFlowBox::placeBoxesInBlockDirection):
Change maxAscent/maxDescent to int to match ascent/descent.
        
* rendering/InlineFlowBox.h:
(InlineFlowBox):
* rendering/InlineTextBox.cpp:
(WebCore::InlineTextBox::baselinePosition):
* rendering/InlineTextBox.h:
(InlineTextBox):
* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::baselinePosition):
(WebCore::RenderBlock::firstLineBoxBaseline):
(WebCore::RenderBlock::lastLineBoxBaseline):
* rendering/RenderBlock.h:
(RenderBlock):
* rendering/RenderBox.cpp:
(WebCore::RenderBox::baselinePosition):
* rendering/RenderBox.h:
(WebCore::RenderBox::firstLineBoxBaseline):
(WebCore::RenderBox::lastLineBoxBaseline):
(RenderBox):
* rendering/RenderBoxModelObject.h:
(RenderBoxModelObject):
* rendering/RenderFlexibleBox.cpp:
(WebCore::RenderFlexibleBox::baselinePosition):
(WebCore::RenderFlexibleBox::firstLineBoxBaseline):
* rendering/RenderFlexibleBox.h:
* rendering/RenderInline.cpp:
(WebCore::RenderInline::baselinePosition):
* rendering/RenderInline.h:
(RenderInline):
* rendering/RenderListBox.cpp:
(WebCore::RenderListBox::baselinePosition):
* rendering/RenderListBox.h:
(RenderListBox):
* rendering/RenderListMarker.cpp:
(WebCore::RenderListMarker::baselinePosition):
* rendering/RenderListMarker.h:
(RenderListMarker):
* rendering/RenderSlider.cpp:
(WebCore::RenderSlider::baselinePosition):
* rendering/RenderSlider.h:
(RenderSlider):
* rendering/RenderTable.cpp:
(WebCore::RenderTable::baselinePosition):
(WebCore::RenderTable::lastLineBoxBaseline):
(WebCore::RenderTable::firstLineBoxBaseline):
* rendering/RenderTable.h:
(RenderTable):
* rendering/RenderTableSection.cpp:
(WebCore::RenderTableSection::firstLineBoxBaseline):
* rendering/RenderTableSection.h:
(RenderTableSection):
* rendering/RenderTextControlMultiLine.cpp:
(WebCore::RenderTextControlMultiLine::baselinePosition):
* rendering/RenderTextControlMultiLine.h:
(RenderTextControlMultiLine):
* rendering/RenderTheme.cpp:
(WebCore::RenderTheme::baselinePosition):
* rendering/RenderTheme.h:
(RenderTheme):
* rendering/RenderThemeSafari.cpp:
(WebCore::RenderThemeSafari::baselinePosition):
* rendering/RenderThemeSafari.h:
(RenderThemeSafari):
* rendering/RootInlineBox.cpp:
(WebCore::RootInlineBox::baselinePosition):
(WebCore::RootInlineBox::alignBoxesInBlockDirection):
* rendering/RootInlineBox.h:
(RootInlineBox):
* rendering/mathml/RenderMathMLBlock.cpp:
(WebCore::RenderMathMLBlock::baselinePosition):
(WebCore::RenderMathMLTable::firstLineBoxBaseline):
* rendering/mathml/RenderMathMLBlock.h:
(RenderMathMLBlock):
(RenderMathMLTable):
* rendering/mathml/RenderMathMLFraction.cpp:
(WebCore::RenderMathMLFraction::firstLineBoxBaseline):
* rendering/mathml/RenderMathMLFraction.h:
(RenderMathMLFraction):
* rendering/mathml/RenderMathMLOperator.cpp:
(WebCore::RenderMathMLOperator::firstLineBoxBaseline):
* rendering/mathml/RenderMathMLOperator.h:
* rendering/mathml/RenderMathMLUnderOver.cpp:
(WebCore::RenderMathMLUnderOver::firstLineBoxBaseline):
* rendering/mathml/RenderMathMLUnderOver.h:
(RenderMathMLUnderOver):

LayoutTests: Unreviewed, further Apple Mac baselines for shadow DOM changes to RenderSlider.

Patch by Jer Noble <jer.noble@apple.com> on 2012-10-22

* platform/mac/fast/forms/input-appearance-height-expected.txt:
* platform/mac/media/controls-without-preload-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@132112 268f45cc-cd09-0410-ab3c-d52691b4dbfc