Rebaseline script:  check for .git and .svn in the current directory as well.  Add mesa to list of configs to update.

R=bsalomon@google.com

Review URL: https://codereview.appspot.com/6908050

git-svn-id: http://skia.googlecode.com/svn/trunk@6707 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/rebaseline.py b/tools/rebaseline.py
index 8a3a8ea..21964d4 100755
--- a/tools/rebaseline.py
+++ b/tools/rebaseline.py
@@ -43,15 +43,15 @@
     '[ <testname> ... ]'
     exit(1)
 
-is_svn_checkout = os.path.exists(os.path.join('..', '.svn'))
-is_git_checkout = os.path.exists(os.path.join('..', '.git'))
+is_svn_checkout = os.path.exists('.svn') or os.path.exists(os.path.join('..', '.svn') )
+is_git_checkout = os.path.exists('.git') or os.path.exists(os.path.join('..', '.git'))
 
 for testname in sys.argv[1:]:
     for pair in pairs:
         if (pair[0] == 'base-shuttle-win7-intel-angle'):
             testtypes = [ 'angle' ]
         else:
-            testtypes = [ '565', '8888', 'gpu', 'pdf' ]
+            testtypes = [ '565', '8888', 'gpu', 'pdf', 'mesa' ]
         print pair[0] + ':'
         for testtype in testtypes:
             infilename = testname + '_' + testtype + '.png'