chromium: Build using libusb (1.0) from nixpkgs.

This dependency has recently been added to chromium while we didn't notice it,
so let's avoid to use the bundled version.

It might make sense to remove the unneeded files in third_party/ based on a
whitelist, so that we notice future changes like this earlier.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/applications/networking/browsers/chromium/default.nix

@@ -5,7 +5,7 @@
 , libevent, expat, libjpeg
 , libpng, libxml2, libxslt
 , xdg_utils, yasm, zlib
-, libexif
+, libusb1, libexif
 
 , python, perl, pkgconfig
 , nspr, udev, krb5
@@ -59,6 +59,7 @@ let
     use_system_libexif = true;
     use_system_libjpeg = true;
     use_system_libpng = true;
+    use_system_libusb = true;
     use_system_libxml = true;
     use_system_speex = true;
     use_system_ssl = cfg.openssl;
@@ -80,7 +81,7 @@ let
     libevent expat libjpeg
     libpng libxml2 libxslt
     xdg_utils yasm zlib
-    libexif
+    libusb1 libexif
   ];
 
   maybeSeccompPatch = let