Create compare-baselines tool to compare locally generated and checked-in GMs.
Review URL: https://codereview.appspot.com/5616056

git-svn-id: http://skia.googlecode.com/svn/trunk@3128 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/download-baselines.py b/tools/download-baselines.py
index 11417be..da67743 100644
--- a/tools/download-baselines.py
+++ b/tools/download-baselines.py
@@ -9,8 +9,9 @@
 svn update
 # make sure there are no files awaiting svn commit
 python tools/download-baselines.py gm/base-macmini-lion-fixed  # or other gm/ subdir
+# validate that the new images look right (maybe using compare-baselines.py)
 # upload CL for review
-# validate that the new images look right
+# validate that the new images look right in the review tool
 # commit CL
 
 Launch with --help to see more options.