commit 2e06c1cba9f690043eba82390feba373cf8ce38b
author Jiwen 'Steve' Cai <jwcai@google.com> Mon Jul 30 21:35:32 2018 -0700
committer Jiwen 'Steve' Cai <jwcai@google.com> Tue Jul 31 14:26:52 2018 -0700
tree 6c1e4686f90a6a4b3c8171eab62389cc5a51401e
parent aac3a45bb06d54318df6136dd6cc2c9844483fcf

Move core data structure of DetachedBuffer into BufferNode

1/ Supports mutiple DetachedBuffer(s) to be created from a single
BufferNode.
2/ Separate core data structure and logic (i.e. BufferNode) out of the
IPC layer (i.e. DetachedBufferChannel).
3/ DetachedBufferChannel will be renamed to BufferChannel in future
and becomes the universal backend of GraphicBuffer. Thus we are naming
the new class BufferNode instead of DetachedBufferNode.
4/ Move BufferHubDefs out of bufferhub_rpc.h, as BufferHubDefs is not
directly related to the PDX IPCm echanism.

Bug: 112011098
Bug: 112012812
Bug: 111976433
Bug: 70046255
Test: buffer_hub-test
Change-Id: Ieba19329a0e823c78f21611462dedacdad3aab85