When this property is turned on, we flash green
every time a hardware layer is updated.
Test: Matches the behavior in OpenGLPipeline
BUG:32370375
Change-Id: I916f94eee644c185d8a3f9fa4cd69e087ed1e92d
Implement Skia pipelines for OpenGL and Vulkan:
base SkiaPipeline, SkiaOpenGLPipeline and SkiaVulkanPipeline.
Write unit tests for SkiaPipeline.
Test: Built and run manually on angler-eng.
Change-Id: Ie02583426cb3547541ad9bf91700602a6163ff58