Fix grit include dependencies in the scons build.

tools/grit/grit/scons.py

Index: tools/grit/grit/scons.py
diff --git a/tools/grit/grit/scons.py b/tools/grit/grit/scons.py
index 9a882161d3b0666ef75d6882f6db610a425e7bbc..849e5379dd8befb50c690411888bee410489fb66 100644
--- a/tools/grit/grit/scons.py
+++ b/tools/grit/grit/scons.py
@@ -138,17 +138,16 @@ def _Scanner(file_node, env, path):
   # line to get this to work with Repository() directories.
   # Get this functionality folded back into the upstream grit tool.
   #grd = grd_reader.Parse(str(file_node)), debug=_IsDebugEnabled())
-  grd = grd_reader.Parse(str(file_node.rfile()), debug=_IsDebugEnabled())
+  grd = grd_reader.Parse(os.path.abspath(_SourceToFile(file_node)),
+                         debug=_IsDebugEnabled())
   files = []
   for node in grd:
     if (node.name == 'structure' or node.name == 'skeleton' or
         (node.name == 'file' and node.parent and
          node.parent.name == 'translations')):
       files.append(os.path.abspath(node.GetFilePath()))
-    elif node.name == 'include' and node.attrs['filenameonly'] == 'false':
-      # TODO(tc): This doesn't work because the path is often relative to 
-      #files.append(node.FilenameToOpen())
-      pass
+    elif node.name == 'include':
+      files.append(node.FilenameToOpen())
 
   # Add in the grit source files.  If one of these change, we want to re-run
   # grit.