Setting width overrides intrinsic min-width/max-width on flexboxes and their subclasses
https://bugs.webkit.org/show_bug.cgi?id=106617

Reviewed by Tony Chang.

Source/WebCore:

Override computeIntrinsicLogicalWidths for all RenderFlexibleBox and RenderDeprecatedFlexibleBox
classes that override computePreferredLogicalWidths so that RenderBox can use
computeIntrinsicLogicalWidths in order to get the correct intrinsic values.

Tests: css3/flexbox/intrinsic-min-width-applies-with-fixed-width.html
       fast/flexbox/intrinsic-min-width-applies-with-fixed-width.html
       fast/forms/select/intrinsic-min-width-applies-with-fixed-width.html

* rendering/RenderBox.cpp:
(WebCore::RenderBox::computeLogicalWidthInRegionUsing):
fit-content needs to use the intrinsic sizes not the preferred sizes
since a fixed width overrides the preferred size.
As best I can tell, the sizesLogicalWidthToFitContent codepath can keep
using preferred widths, which are considerably faster, since that's only used
computing width values. Added a clause to that if-statement to make this more
explicit.

* rendering/RenderDeprecatedFlexibleBox.cpp:
(WebCore::RenderDeprecatedFlexibleBox::computeIntrinsicLogicalWidths):
(WebCore::RenderDeprecatedFlexibleBox::computePreferredLogicalWidths):
* rendering/RenderDeprecatedFlexibleBox.h:
(RenderDeprecatedFlexibleBox):
* rendering/RenderFlexibleBox.cpp:
(WebCore::RenderFlexibleBox::computeIntrinsicLogicalWidths):
(WebCore):
(WebCore::RenderFlexibleBox::computePreferredLogicalWidths):
* rendering/RenderFlexibleBox.h:
* rendering/RenderMenuList.cpp:
(WebCore::RenderMenuList::computeIntrinsicLogicalWidths):
(WebCore):
(WebCore::RenderMenuList::computePreferredLogicalWidths):
* rendering/RenderMenuList.h:
(RenderMenuList):
* rendering/RenderSlider.cpp:
(WebCore::RenderSlider::computeIntrinsicLogicalWidths):
(WebCore):
(WebCore::RenderSlider::computePreferredLogicalWidths):
* rendering/RenderSlider.h:
(RenderSlider):
No logic changes in any of these computeIntrinsic methods. Just moving
the code over from the computePreferred methods.

LayoutTests:

* css3/flexbox/intrinsic-min-width-applies-with-fixed-width-expected.txt: Added.
* css3/flexbox/intrinsic-min-width-applies-with-fixed-width.html: Added.
* fast/flexbox/intrinsic-min-width-applies-with-fixed-width-expected.txt: Added.
* fast/flexbox/intrinsic-min-width-applies-with-fixed-width.html: Added.
* fast/forms/select/intrinsic-min-width-applies-with-fixed-width-expected.html: Added.
* fast/forms/select/intrinsic-min-width-applies-with-fixed-width.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139535 268f45cc-cd09-0410-ab3c-d52691b4dbfc