commit 5abacddfc3355905a3d15a3561d321f5ea62dcc2
author Jin Seok Park <jinpark@google.com> Mon Jul 27 11:23:14 2020 +0900
committer Jin Seok Park <jinpark@google.com> Mon Jul 27 12:43:19 2020 +0900
tree 7c9747a2a1ed2575ee975ca4ddbbd90a43635de3
parent b19564f75cb6547348f1eaa39e36aee9f6215fe9

Rename temp file to use a valid image file extension

MediaProvider added a restriction in R for apps targeting SDK 30 to
not allow .tmp files in image file directories such as "Pictures" and
"DCIM". This CL renames the temp file to avoid this restriction.

Also added test to check for writing to FileDescriptor instances.

Bug: 160874777
Test: atest CtsMediaTestCases:android.media.cts.ExifInterfaceTest
    Also tested with an image file inside /Pictures
Change-Id: Iedb548651c0048b0aecc4b34e9c94f778cf5d1e0