somehow not linking against system flac?

use system libhunspell-dev

remove third_party/npapi

switch back to libgtk2ui?

disable extensions?

webrtc seems to get built regardles of enable_webrtc=0?

remove net/spdy
remove google_apis
remove sync

don't support breakpad (remove a lot of stuff from breakpad/src/third_party)

remove v8/tools

remove chrome/test (gyp includes stuff that likely isn't needed from here)?
remove chrome/installer (gyp includes stuff that likely isn't needed from here)?

remove chrome_elf?
remove cloud_print (not available in printers anyway)?

disable bluetooth

remove third_party/libva (link libva-dev)?
remove third_party/modp_b64 (link libmodpbase64-dev)?

remove third_party/python_gflags?
remove third_party/mozc?
remove third_party/jinja2 (use python-jinja2)?
remove third_party/liblouis (link liblouis2-dev)?
remove third_party/swig (use swig package)?
remove third_party/ply (use python-ply)?
remove third_party/libsrtp (link libsrtp0-dev)?
remove third_party/lzma_sdk?
remove third_party/gpsd?
remove third_party/usb_ids (use usbutils)?
remove third_party/clang_format?
remove third_party/webpagereplay?
remove third_party/google_toolbox_for_max?
remove third_party/chromite?
remove third_party/libyuv (libmagickcore5: /usr/lib/x86_64-linux-gnu/ImageMagick-6.7.7/modules-Q16/coders/yuv.so)?
remove third_party/markdown (use python-markdown)?
remove third_party/markupsafe (use python-markupsafe)?
remove third_party/libmtp (link libmtp-dev)?
remove third_party/libc++ (link libc++-dev, maybe only needed for clang build)?
remove third_party/libc++abi (link libc++abi-dev, maybe only needed for clang build)?
remove third_party/libwebm (package libwebm http://www.webmproject.org/code)?
remove third_party/webgl (package webgl http://www.khronos.org/registry/webgl/sdk)?
remove third_party/google_appengine_cloudstorage?
remove third_party/pyftpdlib (use python-pyftpdlib)?
remove third_party/kronos?
remove third_party/pywebsocket (disable or use python-mod/pywebsocket)?
remove third_party/tlslite (use python-tlslite)?
remove third_party/webdriver/pylib/selenium (use python-selenium)?

remove base/third_party/dynamic_annotations?
remove base/third_party/xdg_mime (use support in xdg-utils)?

avoid or use system libjingle, libcld2, libphonenumber, libadressinput, cacheinvalidation, leveldatabase, angle, smhasher, sfntly, mt19937ar, ...

remove third_party/libXNVCtrl (package currently in contrib, bug #747837)
remove third_party/iccjpeg (currently no library to link against, bug #747839)

remove crypto/third_party/nss?

net/third_party/nss is majorly patched an not likely easy to swap out for system version
base/third_party/icu reproduces stuff from system icu, but uses alternative namespace

build with clang.
