Refactor CellbroadcastAlert dialog
+ Earlier we were using two separate activities without any significant
difference between them apart from screen off handler which is not
required & different layout. So this change merges two activities and uses
commonly used material layout.
+ Avoid sending notification when screen goes off while in
CellBroadcastAlertDialog activity.
+ Fixes problem of showing two different looking dialogs as we are
merging two activities.
Bug: 31172362
Change-Id: I920eea1c53cc8b1a6013e1716a39f695a9edeb8b
7 files changed
