There is a case we need to know if the active node is content editable from TouchHandlerWebKitThread class. WebPage::isInputMode() just delegates InputHandler:: isInputMode().
Created attachment 190052 [details] Patch
Comment on attachment 190052 [details] Patch Ok.
Comment on attachment 190052 [details] Patch Clearing flags on attachment: 190052 Committed r143943: <http://trac.webkit.org/changeset/143943>
All reviewed patches have been landed. Closing bug.