Cleanup: Constify some ProfileKeyedBaseFactory methods and all overrides. Remove ProfileKeyedBaseFa…

chrome/browser/spellchecker/spellcheck_factory.cc

Index: chrome/browser/spellchecker/spellcheck_factory.cc
===================================================================
--- chrome/browser/spellchecker/spellcheck_factory.cc	(revision 154876)
+++ chrome/browser/spellchecker/spellcheck_factory.cc	(working copy)
@@ -78,10 +78,10 @@
                                   PrefService::UNSYNCABLE_PREF);
 }
 
-bool SpellCheckFactory::ServiceRedirectedInIncognito() {
+bool SpellCheckFactory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
-bool SpellCheckFactory::ServiceIsNULLWhileTesting() {
+bool SpellCheckFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }