start from build #54289:
https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Ozone%20Builder/builds/54289

[3503/11262] CXX obj/media/gpu/jpeg_decode_accelerator_unittest/jpeg_decode_accelerator_unittest.o
FAILED: obj/media/gpu/jpeg_decode_accelerator_unittest/jpeg_decode_accelerator_unittest.o 
/b/c/goma_client/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/media/gpu/jpeg_decode_accelerator_unittest/jpeg_decode_accelerator_unittest.o.d -DV8_DEPRECATION_WARNINGS -DUSE_UDEV -DUSE_ASH=1 -DUSE_AURA=1 -DUSE_NSS_CERTS=1 -DUSE_OZONE=1 -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=\"310694-1\" -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -DOS_CHROMEOS -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS -D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DGL_GLEXT_PROTOTYPES -DUSE_GLX -DUSE_EGL -DGTEST_API_= -DGTEST_HAS_POSIX_RE=0 -DGTEST_LANG_CXX11=1 -DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DSK_HAS_PNG_LIBRARY -DSK_HAS_WEBP_LIBRARY -DSK_HAS_JPEG_LIBRARY -DSK_SUPPORT_GPU=1 -DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_NO_STATIC_INITIALIZER -DHAVE_PTHREAD -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -DUCHAR_TYPE=uint16_t -DMESA_EGL_NO_X11_HEADERS -DUNIT_TEST -I../.. -Igen -I../../third_party/libyuv/include -I../../third_party/libwebp/src -I../../third_party/khronos -I../../gpu -I../../third_party/googletest/src/googletest/include -I../../third_party/libwebm/source -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/effects -I../../third_party/skia/include/encode -I../../third_party/skia/include/gpu -I../../third_party/skia/include/images -I../../third_party/skia/include/lazy -I../../third_party/skia/include/pathops -I../../third_party/skia/include/pdf -I../../third_party/skia/include/pipe -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/skia/third_party/vulkan -I../../third_party/skia/src/gpu -I../../third_party/skia/src/sksl -I../../third_party/protobuf/src -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -I../../third_party/mesa/src/include -I../../third_party/ced/src -fno-strict-aliasing -Wno-builtin-macro-redefined -D__DATE__= -D__TIME__= -D__TIMESTAMP__= -funwind-tables -fPIC -pipe -B../../third_party/binutils/Linux_x64/Release/bin -pthread -fcolor-diagnostics -fdebug-prefix-map=/b/c/b/linux_chromeos/src=. -m64 -march=x86-64 -Wall -Werror -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -Wno-unused-lambda-capture -Wno-user-defined-warnings -Wno-enum-compare-switch -O2 -fno-ident -fdata-sections -ffunction-sections -fno-omit-frame-pointer -g0 -fvisibility=hidden -Xclang -load -Xclang ../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.so -Xclang -add-plugin -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang check-auto-raw-pointer -Xclang -plugin-arg-find-bad-constructs -Xclang check-ipc -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -std=gnu++14 -fno-rtti -nostdinc++ -isystem../../buildtools/third_party/libc++/trunk/include -isystem../../buildtools/third_party/libc++abi/trunk/include --sysroot=../../build/linux/debian_jessie_amd64-sysroot -fno-exceptions -fvisibility-inlines-hidden -c ../../media/gpu/jpeg_decode_accelerator_unittest.cc -o obj/media/gpu/jpeg_decode_accelerator_unittest/jpeg_decode_accelerator_unittest.o
../../media/gpu/jpeg_decode_accelerator_unittest.cc:151:2: error: The JpegDecodeAccelerator is not supported on this platform.
#error The JpegDecodeAccelerator is not supported on this platform.
 ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:464:15: error: expected ';' after expression
  base::Thread decoder_thread("DecoderThread");
              ^
              ;
../../media/gpu/jpeg_decode_accelerator_unittest.cc:464:9: error: no member named 'Thread' in namespace 'base'
  base::Thread decoder_thread("DecoderThread");
  ~~~~~~^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:464:16: error: use of undeclared identifier 'decoder_thread'
  base::Thread decoder_thread("DecoderThread");
               ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:465:15: error: use of undeclared identifier 'decoder_thread'
  ASSERT_TRUE(decoder_thread.Start());
              ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:474:5: error: use of undeclared identifier 'decoder_thread'
    decoder_thread.task_runner()->PostTask(
    ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:482:7: error: use of undeclared identifier 'decoder_thread'
      decoder_thread.task_runner()->PostTask(
      ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:494:5: error: use of undeclared identifier 'decoder_thread'
    decoder_thread.task_runner()->PostTask(
    ^
../../media/gpu/jpeg_decode_accelerator_unittest.cc:498:3: error: use of undeclared identifier 'decoder_thread'
  decoder_thread.Stop();