Sally fed928bb1f
Eliminate potential deadlock in AccessibilityCache ...
The cache calls out with its lock to the app main thread when refreshing
nodes. This opens the door for a deadlock, and causes a slowdown for
non-main threads.
Bug: 180957109, 189786298
Test: atest CtsAccessibilityServiceTestCases CtsAccessibilityTestCases
CtsUiAutomationTestCases
FrameworksServicesTests:com.android.server.accessibility
FrameworksCoreTests:com.android.internal.accessibility
FrameworksCoreTests:android.view.accessibility
Merged-In: I27e4e64f778ae1c2a348e16cf8739f7a5596e0fc
Change-Id: I27e4e64f778ae1c2a348e16cf8739f7a5596e0fc
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fed928bb1f