Reviewed by Eric Seidel.

        Improve text control instrinsic widths.
        https://bugs.webkit.org/show_bug.cgi?id=25566
        https://bugs.webkit.org/show_bug.cgi?id=25581
        https://bugs.webkit.org/show_bug.cgi?id=25958

        Excluding list of updated results as the list is so long.
2010-01-05  Ojan Vafai  <ojan@chromium.org>

        Reviewed by Dan Bernstein.

        Improve text control intrinsic widths.
        https://bugs.webkit.org/show_bug.cgi?id=25566
        https://bugs.webkit.org/show_bug.cgi?id=25581
        https://bugs.webkit.org/show_bug.cgi?id=25958

        For Mac fonts that have invalid avgCharWidth entries in the OS/2 table,
        fallback to the Safari 4- behavior of using the width of a zero. For other
        fonts, make Mac match Windows (and thus IE) metrics.

        Lucida Grande is hard-coded to match MS Shell Dlg for inputs and
        Courier New for textareas in order to match Safari Win, Firefox and, in
        some cases IE (IE uses different default fonts depending on encoding).

        The only case where we still don't match Windows is if no font-size is
        set. The default font-size for form controls on the Mac is smaller and
        thus text-control widths will be slightly smaller.

        No new tests. Covered by existing tests.

        * platform/graphics/mac/SimpleFontDataMac.mm:
        (WebCore::SimpleFontData::platformCharWidthInit):
        * rendering/RenderTextControl.cpp:
        (WebCore::):
        (WebCore::RenderTextControl::hasValidAvgCharWidth):
        (WebCore::RenderTextControl::getAvgCharWidth):
        (WebCore::RenderTextControl::calcPrefWidths):
        * rendering/RenderTextControl.h:
        (WebCore::RenderTextControl::scaleEmToUnits):
        * rendering/RenderTextControlMultiLine.cpp:
        (WebCore::RenderTextControlMultiLine::getAvgCharWidth):
        * rendering/RenderTextControlMultiLine.h:
        * rendering/RenderTextControlSingleLine.cpp:
        (WebCore::RenderTextControlSingleLine::getAvgCharWidth):
        (WebCore::RenderTextControlSingleLine::preferredContentWidth):
        * rendering/RenderTextControlSingleLine.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@54748 268f45cc-cd09-0410-ab3c-d52691b4dbfc