Pause onAppsUpdate when AllApps is converted to tabs.

To avoid onAppsUpdated conflicting with WorkTabEdu, this change pauses callback updates when AllApps is first converted to tabs. This should  avoid the need for additional  extended timeouts.

Bug: 159671700
Test: Presubmit
Change-Id: I0959629f47ae6d824e5886b2cf917635f5bfdf0e
1 file changed