Add region-specific suggest URLs for Yahoo_xx search engines where suggest service is available.
Add region-specific suggest URLs for Yahoo_xx search engines where suggest service is available.

Add utf8 output flag to Naver (#1 engine in Korea) so that JSON comes back in UTF-8. 

meta.ua (Ukraine search engine) was changed similarly.

Change the url for Yahoo_sg to sg.yahoo.com (from tw.yahoo.com) and that for Yahoo_nz to nz.yahoo.com (from sg.yahoo.com)

Disable the suggestion service for Daum because it returns the result in EUC-KR and currently we assume it's in UTF-8 (issue 1293145).

Also disable Yahoo_xx's that do not offer suggestion/ac services. We can do some mappings (e.g. at, ch => de, qc => ca or fr, hk => tw or en and nl,no,dk, fi => en, the rational for the last being that English proficiency of general public in those countries is rather good.), but disable it for now.

BUG=1342120
TEST=Install various language versions of Chrome and set the default search engines to a regional Yahoo variant and see if suggest works in the omnibar. 
Install Korean Chrome and set the default search engine to Naver and see if suggesst works. 



git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@1480 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser