Isolate manual artifact validation without package publication

build/linux-toolchain/skia-linux.gn.in

@@ -0,0 +1,30 @@
+target_os = "linux"
+target_cpu = "@CPU@"
+is_official_build = true
+is_static_skiasharp = true
+skia_enable_tools = false
+skia_enable_ganesh = true
+skia_enable_pdf = false
+skia_enable_skottie = false
+skia_use_dng_sdk = false
+skia_use_fontconfig = true
+skia_use_freetype = true
+skia_use_harfbuzz = false
+skia_use_icu = false
+skia_use_piex = false
+skia_use_sfntly = false
+skia_use_system_expat = false
+skia_use_system_freetype2 = false
+skia_use_system_libjpeg_turbo = false
+skia_use_system_libpng = false
+skia_use_system_libwebp = false
+skia_use_system_zlib = false
+skia_use_vulkan = false
+skia_use_xps = false
+extra_cflags_cc = [ "-frtti", "-pthread" ]
+cc = "@CC@"
+cxx = "@CXX@"
+ar = "@AR@"
+extra_cflags = [ "-DSKIA_C_DLL", "-DHAVE_SYSCALL_GETRANDOM", "-DXML_DEV_URANDOM" ]
+# Standalone SkiaSharp excludes the Chromium PartitionAlloc dependency.
+skia_use_partition_alloc = false