[gnome-builder] build: Add two missing source files

[Christian Hergert <chergert src gnome org>]

commit cc9112dd818f1efc33d1cf677e088e6a838473c6
Author: Mathieu Bridon <bochecha fedoraproject org>
Date:   Fri Sep 12 09:32:37 2014 +0200

    build: Add two missing source files
    
    This fixes distcheck.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736532

 src/gnome-builder.mk |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-builder.mk b/src/gnome-builder.mk
index 35b1cf0..a6d9bd0 100644
--- a/src/gnome-builder.mk
+++ b/src/gnome-builder.mk
@@ -27,6 +27,7 @@ gnome_builder_SOURCES = \
        src/editor/gb-editor-tab-private.h \
        src/editor/gb-editor-workspace.c \
        src/editor/gb-editor-workspace.h \
+       src/editor/gb-editor-workspace-private.h \
        src/editor/gb-source-formatter.c \
        src/editor/gb-source-formatter.h \
        src/editor/gb-source-search-highlighter.h \
@@ -142,4 +143,5 @@ src/resources/gb-resources.h: src/resources/gnome-builder.gresource.xml $(resour
        $(AM_V_GEN)glib-compile-resources --target=$@ --sourcedir=$(top_srcdir)/src/resources 
--generate-header --c-name gb $(top_srcdir)/src/resources/gnome-builder.gresource.xml
 
 EXTRA_DIST += $(resource_files)
+EXTRA_DIST += src/resources/gnome-builder.gresource.xml