adding chromium-browser to basebuild ubuntu images

Change-Id: I8ded81a63faf157ded7dc7582821aaa19fa03a23
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index 6413221..f9384f7 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -48,6 +48,7 @@
         npm \
         python-pip \
         docker-ce \
+        chromium-browser \
         # end of apt-get install list
     npm install -g bower
     npm install karma --save-dev