chromium-widevine: unbreak absolute paths in INSTALL/REMOVE scripts

srcpkgs/chromium-widevine/INSTALL

@@ -1,6 +1,6 @@
 # INSTALL
 DISTFILE="https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb"
-BUILD_DIR="/var/tmp/$PKGNAME.build"
+BUILD_DIR="$PWD/var/tmp/$PKGNAME.build"
 case "$ACTION" in
 post)
     # Actions to execute before the package files are unpacked.
@@ -10,7 +10,8 @@ post)
     cd $BUILD_DIR
     ar x $PKGNAME.deb
     tar xf data.tar.xz --wildcards './opt/google/chrome/libwidevine*'
-    mv opt/google/chrome/libwidevine* usr/lib/chromium
+    cd -
+    mv $BUILDDIR/opt/google/chrome/libwidevine* usr/lib/chromium
     rm -r $BUILD_DIR
     ;;
 esac

srcpkgs/chromium-widevine/template

@@ -4,7 +4,7 @@ _channel="stable"
 
 pkgname=chromium-widevine
 version=69.0.3497.100
-revision=1
+revision=2
 short_desc="A browser plugin designed for the viewing of premium video content"
 maintainer="Benjamin Hoffmeyer <hoffmeyer25@gmail.com>"
 homepage="https://www.google.com/chrome"