Merge pull request #4311 from ritzalam/fix-exception

 - fix exception

bigbluebutton-client/src/org/bigbluebutton/modules/screenshare/managers/WebRTCDeskshareManager.as

@@ -20,18 +20,21 @@
 package org.bigbluebutton.modules.screenshare.managers
 {
 	import com.asfusion.mate.events.Dispatcher;
+	
 	import flash.external.ExternalInterface;
+	
 	import org.as3commons.lang.StringUtils;
 	import org.as3commons.logging.api.ILogger;
 	import org.as3commons.logging.api.getClassLogger;
 	import org.bigbluebutton.core.Options;
 	import org.bigbluebutton.core.UsersUtil;
-	import org.bigbluebutton.main.api.JSLog;
+	import org.bigbluebutton.main.api.JSLog;
 	import org.bigbluebutton.main.events.MadePresenterEvent;
-	import org.bigbluebutton.modules.phone.models.WebRTCAudioStatus;
-	import org.bigbluebutton.modules.screenshare.events.DeskshareToolbarEvent;
+	import org.bigbluebutton.modules.phone.models.WebRTCAudioStatus;
+	import org.bigbluebutton.modules.screenshare.events.DeskshareToolbarEvent;
+	import org.bigbluebutton.modules.screenshare.events.IsSharingScreenEvent;
 	import org.bigbluebutton.modules.screenshare.events.ShareStartedEvent;
-	import org.bigbluebutton.modules.screenshare.events.UseJavaModeCommand;
+	import org.bigbluebutton.modules.screenshare.events.UseJavaModeCommand;
 	import org.bigbluebutton.modules.screenshare.events.WebRTCPublishWindowChangeState;
 	import org.bigbluebutton.modules.screenshare.events.WebRTCViewStreamEvent;
 	import org.bigbluebutton.modules.screenshare.model.ScreenshareOptions;
@@ -296,8 +299,7 @@ package org.bigbluebutton.modules.screenshare.managers
 			dispatcher.dispatchEvent(new WebRTCViewStreamEvent(WebRTCViewStreamEvent.START));
 		}
 
-		/*public function handleIsSharingScreenEvent(event: IsSharingScreenEvent):void {*/
-		public function handleIsSharingScreenEvent():void {
+		public function handleIsSharingScreenEvent(event: IsSharingScreenEvent):void {
 			if (UsersUtil.amIPresenter()) {
 			} else {
 				/*handleStreamStartEvent(ScreenshareModel.getInstance().streamId, event.width, event.height);*/