Snap GDI matrix when snapping height.

When using GDI to render, ensure that the GDI matrix does not attempt to
add subpixel height. This ensures that rotated text is always the same
height as axis aligned text and prevents subpixel drift metrics when they
are unwanted.

R=reed@google.com

Review URL: https://codereview.chromium.org/25739002

git-svn-id: http://skia.googlecode.com/svn/trunk@11592 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed