add null check for accountComponentName

-Also add exception handling for null accountId
-Add UT to make sure we dont crash if any string fields from the
 cursor are null.

Tests: atest CallLogBackupAgent
Bug: 232301563
Change-Id: I72b92d550e4ed596bcceb82838fb3b7a28c062a0
2 files changed
tree: 9566e0dbee7dc1d7ab956b4879f91e0ae2168c3c
  1. res/
  2. src/
  3. tests/
  4. Android.bp
  5. AndroidManifest.xml
  6. OWNERS
  7. proguard.flags