DO NOT MERGE: Add permission dialogs to the Dialogs Sample page

Bug: 153478255, 154244647
Test: Manual on emulator and on device
Change-Id: Id529e08775603be27cc878b6d7ace864d59a4d6a
(cherry picked from commit 82c381779caf08c73d0b30c88b1afaf92e384bf3)
3 files changed