Modify underline background color of Japanese IME Preedit
Modify underline background color of Japanese IME Preedit

[Title] Modify underline background color of Japanese IME Preedit
[Issue#] P130925-01944
[Problem] font is not displayed when both font color and underline background color are white
[Cause] both font color and underline background color are white
[Solution] change underline background color when both font color and underline background color are white

Change-Id: Ibf7908cfd0338f89ddcb79e7a6a084e2d8a308b0

youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl,youfoh/webkit-efl