fix an exception in the outline view
fix an exception in the outline view

b0dh1sattva/chromedeveditor,beaufortfrancois/chromedeveditor,valmzetvn/chromedeveditor,beaufortfrancois/chromedeveditor,ussuri/chromedeveditor,yikaraman/chromedeveditor,googlearchive/chromedeveditor,ussuri/chromedeveditor,b0dh1sattva/chromedeveditor,modulexcite/chromedeveditor,b0dh1sattva/chromedeveditor,googlearchive/chromedeveditor,2947721120/chromedeveditor,2947721120/choredev,2947721120/choredev,devoncarew/spark,devoncarew/spark,2947721120/choredev,hxddh/chromedeveditor,2947721120/chromedeveditor,yikaraman/chromedeveditor,devoncarew/spark,modulexcite/chromedeveditor,modulexcite/chromedeveditor,vivalaralstin/chromedeveditor,valmzetvn/chromedeveditor,valmzetvn/chromedeveditor,beaufortfrancois/chromedeveditor,2947721120/chromedeveditor,2947721120/chromedeveditor,hxddh/chromedeveditor,b0dh1sattva/chromedeveditor,yikaraman/chromedeveditor,yikaraman/chromedeveditor,googlearchive/chromedeveditor,valmzetvn/chromedeveditor,googlearchive/chromedeveditor,yikaraman/chromedeveditor,modulexcite/chromedeveditor,googlearchive/chromedeveditor,2947721120/chromedeveditor,vivalaralstin/chromedeveditor,yikaraman/chromedeveditor,devoncarew/spark,hxddh/chromedeveditor,valmzetvn/chromedeveditor,googlearchive/chromedeveditor,googlearchive/chromedeveditor,ussuri/chromedeveditor,vivalaralstin/chromedeveditor,yikaraman/chromedeveditor,hxddh/chromedeveditor,2947721120/choredev,ussuri/chromedeveditor,modulexcite/chromedeveditor,hxddh/chromedeveditor,vivalaralstin/chromedeveditor,hxddh/chromedeveditor,vivalaralstin/chromedeveditor,beaufortfrancois/chromedeveditor,modulexcite/chromedeveditor,modulexcite/chromedeveditor,ussuri/chromedeveditor,b0dh1sattva/chromedeveditor,beaufortfrancois/chromedeveditor,2947721120/chromedeveditor,vivalaralstin/chromedeveditor,devoncarew/spark,vivalaralstin/chromedeveditor,b0dh1sattva/chromedeveditor,valmzetvn/chromedeveditor,2947721120/choredev,valmzetvn/chromedeveditor,ussuri/chromedeveditor,hxddh/chromedeveditor,2947721120/choredev,ussuri/chromedeveditor,devoncarew/spark,2947721120/choredev,2947721120/chromedeveditor,beaufortfrancois/chromedeveditor,b0dh1sattva/chromedeveditor,beaufortfrancois/chromedeveditor