message: DEPS: Roll SPIRV-Headers and SPIRV-Tools.
  Roll SPIRV-Headers and SPIRV-Tools so we can roll shaderc so we can use
  libshaderc_spvc in the SPIRV-Cross fuzzers.
diff: @@ -56,11 +56,11 @@ deps = {
  # SPIRV compiler dependencies: SPIRV-Tools, SPIRV-headers, glslang and shaderc
  'third_party/SPIRV-Tools': {
  - 'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@dab634da93d39763bc5b526de9d25104a3bd3b65',
  + 'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Tools@20b2e2b9f599413e6197a7b84ac71216d2ac4ad0',
  'condition': 'dawn_standalone',
  },
  'third_party/spirv-headers': {
  - 'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Headers@7cb43009d543e90698dd300eb26dfd6d9a9bb100',
  + 'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Headers@79b6681aadcb53c27d1052e5f8a0e82a981dbf2f',
  'condition': 'dawn_standalone',
  },
  'third_party/glslang': {
  