Prefer truetype version of common fonts on Windows

Change FontCache::getFontResourceData to look up prefered alternates
for certain system fonts and prefer those over the equivalent bitmap
fonts. For now this facility is only used on windows and changes the
alternate handling for those few fonts to be done _before_ checking
for the specified font as opposed to after. 

BUG=293438

Review URL: https://chromiumcodereview.appspot.com/23677008

git-svn-id: svn://svn.chromium.org/blink/trunk@158211 bbb929c8-8fbe-4397-9dbb-9b2b20218538