Bug 810225 part.1 Replace NSInputManager in PR_LOG() with NSTextInputContext r=smichaund
Bug 810225 part.2 Replace the hack for ::TSMGetActiveDocument() with NSTextInputContext r=smichaund
Bug 810225 part.3 Replace NSInputManager in IMEInputHandler::DiscardIMEComposition() with NSTextInputContext r=smichaund
Bug 810225 part.4 Replace NSInputManager in IMEInputHandler::KillIMEComposition() with NSTextInputContext r=smichaund