Bug 1187173 - Disable warning C4623 on security/certverifier. r=briansmith

--HG--
extra : source : 9f3acfedff8cf4a26266bb578dc69727e799c0cf
extra : amend_source : cb1d0a6e8c6d9199429159cb9a20484f5aa95b8d

security/certverifier/moz.build

@@ -45,6 +45,8 @@ if CONFIG['_MSC_VER']:
     '-wd4610', # struct 'symbol' can never be instantiated - user defined
                # constructor required
     '-wd4619', # pragma warning: there is no warning 'warning'
+    '-wd4623', # default constructor could not be generated because a base
+               # class default constructor is inaccessible or deleted
     '-wd4625', # copy constructor could not be generated because a base
                # class copy constructor is inaccessible or deleted
     '-wd4626', # assignment operator could not be generated because a base