tree 68edf4cde2c585bf476a22416c19b75740e9878d
parent ae8ae3d1a2e5a22f42453a02533981f886327c37
author djsollen@google.com <djsollen@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1331826591 +0000
committer djsollen@google.com <djsollen@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> 1331826591 +0000

Add CreateFallbackForScript to SkTypeface for Android.

WebKit uses HarfBuzz directly to do Complex Text Layout, so it needs to get the
proper SkTypeface to pass it to HarfBuzz. However, on Android, fallback scripts
have no name, and we can only get them by file name each time (CreateFromFile).
This actually breaks the semantics of SkTypeface, which states 'The ID should
be unique for the underlying font file/data, not unique per typeface instance.'

And add 2 helper function to convert between FallbackScripts enum and font file
name. These are useful for WebKit's FontCache, which needs string as key.

https://codereview.appspot.com/5797066/

git-svn-id: http://skia.googlecode.com/svn/trunk@3403 2bbb7eff-a529-9590-31e7-b0007b416f81