https://bugs.webkit.org/show_bug.cgi?id=90269

Reviewed by Martin Robinson.

Source/WebCore:

Move enchant specific code down to WebCore, into a new class
TextCheckerEnchant, that we can use from WK1 and WK2.

* GNUmakefile.am: Add flags to handle the SPELLCHECK feature.
* GNUmakefile.list.am: Added new files.
* platform/text/gtk/TextCheckerEnchant.cpp: Added.
(getAvailableDictionariesCallback):
(TextCheckerEnchant::TextCheckerEnchant):
(TextCheckerEnchant::~TextCheckerEnchant):
(TextCheckerEnchant::ignoreWord):
(TextCheckerEnchant::learnWord):
(TextCheckerEnchant::checkSpellingOfString):
(TextCheckerEnchant::getGuessesForWord):
(TextCheckerEnchant::updateSpellCheckingLanguages):
(TextCheckerEnchant::freeEnchantBrokerDictionaries):
* platform/text/gtk/TextCheckerEnchant.h: Added.
(WebCore):
(TextCheckerEnchant):
(WebCore::TextCheckerEnchant::create):

Source/WebKit/gtk:

Remove enchant specific code from WebKitSpellCheckerEnchant and
implement it relying in the new TextCheckerEnchant class in WebCore.

* webkit/webkitspellcheckerenchant.cpp:
(_WebKitSpellCheckerEnchantPrivate):
(webkit_spell_checker_enchant_finalize):
(webkit_spell_checker_enchant_class_init):
(webkit_spell_checker_enchant_init):
(checkSpellingOfString):
(getGuessesForWord):
(updateSpellCheckingLanguages):
(learnWord):
(ignoreWord):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@124578 268f45cc-cd09-0410-ab3c-d52691b4dbfc