commit 4465f55d925810a7659041f099c21c1fb1457ddf
author yoshiki iguchi <yoshiki@google.com> Wed May 22 11:32:46 2019 +0900
committer Yoshiki Iguchi <yoshiki@google.com> Wed May 22 03:23:54 2019 +0000
tree 0a5df49882bd5294c6b293ecbbd9186aa47f6b79
parent 0f097d0dfa6157a23f1b680fda1a7311efeeb349

Don't fire 'changed' event if printer list is not updated

The printer list is tried to be updated when the network is changed
but the 'changed' event was fired even if the printer list is not
changed at all.

This CL suppresses events if the list is not changed.

Bug: 132840441
Test: run 'cts-tradefed run commandAndExit cts-dev --module
    CtsPrintTestCases --test android.print.cts.
    PrintDocumentAdapterContractTest#unexpectedLayoutCancel' 30 times
Change-Id: I9236e56ea9e19e37be29d6a1d0015ee0b2676460