chromium 28 for linux 编译
在编译好chromium for android后，http://blog.csdn.net/longji/article/details/53012985；进行如下操作，可以正常编译chromium for linux。
切换到release分支，参考：http://www.chromium.org/developers/how-tos/get-the-code/working-with-release-branches
git checkout -b b2785linux branch-heads/2785
git reset --hard c0db0f8f
sudo apt-get -y install libexpat1-dev libfreetype6-dev libbz2-dev libcups2-dev
build/install-build-deps.sh
gclient runhooks
gn gen out/gnLinux
ninja -C out/gnLinux chrome
out/gnLinux/chrome
编译成功后，运行是提示：
./chrome: error while loading shared libraries: libgcrypt.so.11: cannot open shared object file: No such file or directory
到ubuntu官网找libgcrypt11
https://launchpad.net/ubuntu/+source/libgcrypt11
下载并安装libgcrypt11_1.5.3-2ubuntu4_amd64.deb
http://launchpadlibrarian.net/160013007/libgcrypt11_1.5.3-2ubuntu4_amd64.deb
在运行out/gnLinux/chrome
# 如果要生产arm64，需要运行 build/linux/sysroot_scripts/install-sysroot.py --arch=arm64 ，貌似只能 is_clang=true
build/linux/sysroot_scripts/install-sysroot.py --arch=arm64
# --arch="arm64" --sysroot="//build/linux/debian_jessie_arm64_sysroot"
gn gen out/ReleaseLinuxArm64 --ide="vs2015" --args="target_os=\"linux\" target_cpu=\"arm64\" is_component_build=false is_debug=false is_official_build=true google_api_key=false google_default_client_id=false google_default_client_secret=false proprietary_codecs=true media_use_ffmpeg=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_mse_mpeg2ts_stream_parser=true enable_hls_sample_aes=true chrome_pgo_phase=0 use_debug_fission=false is_clang=true"
# 直接像上面在命令行制定 sysroot 不行
ninja -C out/ReleaseLinuxArm64 chrome
# 运行 build/linux/sysroot_scripts/install-sysroot.py --arch=arm 后，在执行gn gen，貌似只能 is_clang=true
build/linux/sysroot_scripts/install-sysroot.py --arch=arm
# --arch="arm" --sysroot="//build/linux/debian_wheezy_arm-sysroot"
gn gen out/ReleaseLinuxArm86 --ide="vs2015" --args="target_os=\"linux\" target_cpu=\"arm\" is_component_build=false is_debug=false is_official_build=true google_api_key=false google_default_client_id=false google_default_client_secret=false proprietary_codecs=true media_use_ffmpeg=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_mse_mpeg2ts_stream_parser=true enable_hls_sample_aes=true chrome_pgo_phase=0 use_debug_fission=false is_clang=true"
ninja -C out/ReleaseLinuxArm86 chrome
build/linux/sysroot_scripts/install-sysroot.py --arch=amd64
# --arch="amd64" --sysroot="//build/linux/debian_wheezy_amd64-sysroot"
gn gen out/ReleaseLinuxX64 --ide="vs2015" --args="target_os=\"linux\" target_cpu=\"x64\" is_component_build=false is_debug=false is_official_build=true google_api_key=false google_default_client_id=false google_default_client_secret=false proprietary_codecs=true media_use_ffmpeg=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_mse_mpeg2ts_stream_parser=true enable_hls_sample_aes=true chrome_pgo_phase=0 use_debug_fission=false is_clang=true"
ninja -C out/ReleaseLinuxX64 chrome
# 编译成功，运行找不到动态库
build/linux/sysroot_scripts/install-sysroot.py --arch=i386
# --arch="i386" --sysroot="//build/linux/debian_wheezy_i386-sysroot"
gn gen out/ReleaseLinuxX86 --ide="vs2015" --args="target_os=\"linux\" target_cpu=\"x86\" is_component_build=false is_debug=false is_official_build=true google_api_key=false google_default_client_id=false google_default_client_secret=false proprietary_codecs=true media_use_ffmpeg=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_mse_mpeg2ts_stream_parser=true enable_hls_sample_aes=true chrome_pgo_phase=0 use_debug_fission=false is_clang=true"
ninja -C out/ReleaseLinuxX86 chrome
# 在chromium下运行成功，`--arch=\"amd64\" --sysroot=\"//build/linux/debian_wheezy_amd64-sysroot\"
gn gen out/DebugX64 --ide="eclipse" --args="target_os=\"linux\" target_cpu=\"x64\" is_component_build=true is_debug=true is_official_build=true google_api_key=false google_default_client_id=false google_default_client_secret=false proprietary_codecs=true media_use_ffmpeg=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_mse_mpeg2ts_stream_parser=true enable_hls_sample_aes=true chrome_pgo_phase=0 use_debug_fission=false is_clang=true"
# 编译成功，运行coredump
ninja -C out/DebugX64 chrome
03 问题
异常问题的解决
error: LLVMgold.so: could not load plugin library: LLVMgold.so: cannot open shared object file: No such file or directory
解决办法： sudo apt reinstall llvm-dev