|author||liyuqian <firstname.lastname@example.org>||Thu Apr 18 21:14:06 2019|
|committer||GitHub <email@example.com>||Thu Apr 18 21:14:06 2019|
Generate layer unique id for raster cache key (#8637) The raw pointer isn't a reliable id as the allocator can reuse an address that's just been released for another layer. This will fix Fuchsia bug FL-216. This problem was not affecting non-Fuchsia Flutter probably because non-Fuchsia Flutter purges the raster cache key much more frequently so we won't see a key collision. In Fuchsia, as the key has to wait for the Vulkan surface to render asynchronously, this suddenly becomes an issue.
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