Fixes linux install script for mojo

chrome/installer/linux/common/installer.include

Index: chrome/installer/linux/common/installer.include
diff --git a/chrome/installer/linux/common/installer.include b/chrome/installer/linux/common/installer.include
index 4d006ae8bc1d1e5aa1db8ecec0306874f3342489..9f68538ce0bbd131a77e82d12d8ac59c07ca02a6 100644
--- a/chrome/installer/linux/common/installer.include
+++ b/chrome/installer/linux/common/installer.include
@@ -150,6 +150,7 @@ stage_install_common() {
   # ffmpeg libs
   install -m 644 -s "${BUILDDIR}/libffmpegsumo.so" "${STAGEDIR}/${INSTALLDIR}/"
 
+  install -m 755 -d "${STAGEDIR}/${INSTALLDIR}/lib/"
   install -m 644 -s "${BUILDDIR}/lib/libmojo_system.so" "${STAGEDIR}/${INSTALLDIR}/lib/"
 
   # Widevine CDM.
@@ -174,7 +175,6 @@ stage_install_common() {
 
   # peerconnection shared library
   if [ -f "${BUILDDIR}/lib/libpeerconnection.so" ]; then
-    install -m 755 -d "${STAGEDIR}/${INSTALLDIR}/lib/"
     install -m 644 -s "${BUILDDIR}/lib/libpeerconnection.so" "${STAGEDIR}/${INSTALLDIR}/lib/"
   fi