[WIN] Add WTF_USE_IMLANG_FONT_LINK2
https://bugs.webkit.org/show_bug.cgi?id=115198

Reviewed by Andreas Kling.

Source/WebCore:

Add this new define to have a central place for switching
the IMLangFontLinkType and adop all usages of the type.
This makes the usage of the code easier on desktop pcs.

* platform/graphics/FontCache.h:
(WebCore):
* platform/graphics/wince/FontCacheWinCE.cpp:
(WebCore::currentFontContainsCharacter):
(WebCore::createMLangFont):
(WebCore::FontCache::getFontDataForCharacters):
* platform/graphics/wince/SimpleFontDataWinCE.cpp:
(WebCore::SimpleFontData::containsCharacters):

Source/WTF:

* wtf/Platform.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149293 268f45cc-cd09-0410-ab3c-d52691b4dbfc