Rename the Shader 'varyings' member to 'mVaryings' to follow coding standard Trac #19900 Issue=291 Signed-off-by: Shannon Woods Signed-off-by: Nicolas Capens git-svn-id: https://angleproject.googlecode.com/svn/trunk@990 736b8ea6-26fd-11df-bfd4-992fa37f6226