SkSurface::getBackendTexture and SkSurface::getBackendRenderTarget have been deprecated and replaced with SkSurfaces::GetBackendTexture and SkSurfaces::GetBackendRenderTarget respectively. These are found in include/gpu/ganesh/SkSurfaceGanesh.h. The supporting enum BackendHandleAccess has also been moved to SkSurfaces::BackendHandleAccess as an enum class, with shorter member names.