Change the default values of WebPreferences for zh-* and ja.
For Google ChromeOS, set them to the licensed fonts.
For Chromium OS, set them to IPA fonts (ja) and Droid Sans fallback (zh-*).
Because 'grd' format does not support messages with the same id in multiple
branches when use_name_for_id is set [1], we add
locale_settings_{chromiumos,google_chromeos}.grd in place of locale_settings_cros.grd. However, xtb files included by them keep their old names (locale_settings_cros_{lang}.xtb ).
[1] http://code.google.com/p/grit-i18n/issues/detail?id=8
BUG=159456
TEST=In Google ChromeOS, go to http://www.w3.org/International/tests/tests-html-css/tests-fonts/generate-auto-assignment?test=1 and see if 'ja', 'zh-*', 'ko' use slightly differnet glyphs. Or, see http://i18nl10n.com/cros/cjkdeffont.html and make sure that the 3rd column matches in 4th column in ChromeOS and 5th column in Chromium OS.
Review URL: https://chromiumcodereview.appspot.com/
11338052
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168429 0039d316-1c4b-4281-b951-d872f2087c98