diff -Naur chromium.orig/PKGBUILD chromium/PKGBUILD
--- chromium.orig/PKGBUILD	2016-07-22 17:40:14.093910000 +0200
+++ chromium/PKGBUILD	2016-07-22 17:42:15.717419286 +0200
@@ -12,12 +12,12 @@
 arch=('i686' 'x86_64')
 url="http://www.chromium.org/"
 license=('BSD')
-depends=('gtk2' 'nss' 'alsa-lib' 'xdg-utils' 'bzip2' 'libevent' 'libxss'
+depends=('gtk3' 'nss' 'alsa-lib' 'xdg-utils' 'bzip2' 'libevent' 'libxss'
          'libexif' 'libgcrypt' 'ttf-font' 'systemd' 'dbus' 'flac' 'snappy'
          'speech-dispatcher' 'pciutils' 'libpulse' 'harfbuzz' 'libsecret'
          'libvpx' 'perl' 'perl-file-basedir' 'desktop-file-utils'
          'hicolor-icon-theme')
-makedepends=('python2' 'gperf' 'yasm' 'mesa' 'ninja')
+makedepends=('gtk2' 'python2' 'gperf' 'yasm' 'mesa' 'ninja')
 makedepends_x86_64=('lib32-gcc-libs' 'lib32-zlib')
 optdepends=('kdebase-kdialog: needed for file dialogs in KDE'
             'gnome-keyring: for storing passwords in GNOME keyring'
@@ -92,7 +92,7 @@
 build() {
   cd "$srcdir/chromium-launcher-$_launcher_ver"
 
-  make PREFIX=/usr
+  make PREFIX=/usr GTK=3
 
   cd "$srcdir/$pkgname-$pkgver"
 
@@ -148,6 +148,7 @@
     -Duse_mojo=0
     -Duse_gconf=0
     -Duse_sysroot=0
+    -Duse_gtk3=1
     -Denable_hangout_services_extension=1
     -Denable_widevine=1
     -Ddisable_fatal_linker_warnings=1