Change Arabic sample character from 0x0600 to 0x0627.

Arabic font on some devices doesn't have 0x0600 glyph and is not correctly
handled by complex text path.

BUG=6772513

Review URL: https://codereview.appspot.com/6497053

git-svn-id: http://skia.googlecode.com/svn/trunk@5336 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed