tree e5d14b6384d24a8a12ab3ac2e082431199e2b22b
parent d7c99dd43d9055a741793916cf83c6597946076e
author Chia-I Wu <olv@google.com> 1487017704 -0800
committer Chia-I Wu <olv@google.com> 1489171018 -0800

surfaceflinger: simplify HWC buffer cache clean up

When a Layer is no longer connected, we destroy the associated HWC
layers on next call to SurfaceFlinger::rebuildLayerStacks or when
the Layer is destroyed.  There is no need to listen to
onBuffersReleased.  Besides, we need to perform the cleanup from the
main thread as we only talk to HWC process from the main thread.

While at it, move HWComposerBufferCache to its own files.

Bug: 35320590
Test: manual
Change-Id: Ifa32f24076b094c8fa9cda8572b03d5bfb8e0b93