Bug 1093862 - Make Callscreen not respond to user input while there are no currently handled calls. r=gtorodelvalle, r=thills
Merge pull request #26430 from DouglasSherk/1093862-callscreen-ended-calls-v2.1

Bug 1093862 - Make Callscreen not respond to user input while there are no currently handled calls. r=gtorodelvalle, r=thills