Change WebLocalizableStrings to take UTF-8 C strings

     Change WebLocalizableStrings to take UTF-8 C strings

         This matches the way things work on the Mac, and will allow source
         files containing localizable strings to be shared between Mac and
         Windows. The old functions have not been removed for compatibility
         reasons, but are now just wrappers around the new UTF-8 functions.

         Reviewed by Ada.

         * WebKit.vcproj/WebKit.def: Added new functions.
         * WebKit.vcproj/WebKit_debug.def: Ditto.
         * WebLocalizableStrings.cpp:
         (copyLocalizedStringFromBundle): Changed to take a WebCore::String
         representing the key.
         (localizedString): Refactored from WebLocalizedString. Takes a
         WebCore::String representing the key.
         (localizedLPCTSTR): Ditto for WebLocalizedLPCTSTR.
         (WebLocalizedStringUTF8): Added. Takes a UTF-8 C string as the key.
         (WebLocalizedLPCTSTRUTF8): Ditto.
         (WebLocalizedString): Changed to call localizedString.
         (WebLocalizedLPCTSTR): Changed to call localizedLPCTSTR.
         * WebLocalizableStrings.h: Changed macros to use the new UTF-8
         functions.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27498 268f45cc-cd09-0410-ab3c-d52691b4dbfc