diff --git a/testing/chromium/build b/testing/chromium/build
index a57a7592..a4643d88 100755
--- a/testing/chromium/build
+++ b/testing/chromium/build
@@ -4,8 +4,11 @@ git clone --depth 1 \
     https://chromium.googlesource.com/chromium/tools/depot_tools.git
 
 export PATH="$PATH:$PWD/depot_tools"
+export GYP_DEFINES="use_aura=1"
 
 gn gen out/Default \
-    --args='target_os="linux" target_cpu="x64" is_debug=false use_jumbo_build=true enable_nacl=false symbol_level=0 blink_symbol_level=0 enable_nacl_nonsfi=false use_gold=false treat_warnings_as_errors=false fatal_linker_warnings=false use_sysroot=false use_cups=false use_dbus=false safe_browsing_mode=0 use_pulseaudio=false use_gtk3=false use_gtk2=true use_gconf=false use_gio=false use_gnome_keyring=false use_kerberos=false'
+    --args='target_cpu="x64" is_debug=false use_jumbo_build=true enable_nacl=false symbol_level=0 blink_symbol_level=0 enable_nacl_nonsfi=false use_gtk3=true use_gold=false treat_warnings_as_errors=false fatal_linker_warnings=false use_sysroot=false use_cups=false rtc_use_x11=true use_dbus=false safe_browsing_mode=0 use_pulseaudio=false use_use_gconf=false use_gio=false use_gnome_keyring=false use_kerberos=false'
+
+gn args out/Default --list 2>&1 | less
 
 ninja -C out/Release chrome chromedriver
diff --git a/testing/chromium/checksums b/testing/chromium/checksums
index 484b503b..5c20995d 100644
--- a/testing/chromium/checksums
+++ b/testing/chromium/checksums
@@ -1 +1,3 @@
 510e6ca7ccc218b401b375c13656f6aecab196b03142026dc3602b9d1804a5ac  chromium-75.0.3770.142.tar.xz
+75c31df557238c5bdc2b91401b13b381b68c812594d89f8f053e0e489d4991c2  chromium-optional-atk-r1.patch
+6592a17ac557d4cdd5dbb9cd2445c95c1668f17d8c95a7f5ebf42ebbde35430e  chromium-optional-dbus-r5.patch
diff --git a/testing/chromium/depends b/testing/chromium/depends
index 44215a14..f007c92d 100644
--- a/testing/chromium/depends
+++ b/testing/chromium/depends
@@ -28,5 +28,6 @@ re2           make
 snappy        make
 yasm          make
 zlib          make
-# nss make
-# pango
+# nss         make
+# pango       make
+# gtk3        make