Fix typos in num_failures_by_type for json results.

chrome/test/mini_installer/test_installer.py

Index: chrome/test/mini_installer/test_installer.py
diff --git a/chrome/test/mini_installer/test_installer.py b/chrome/test/mini_installer/test_installer.py
index 7a9521a793f7bbb18a30d0beb3f88ad991dd2cf3..681fba85459ce80b874ffa36181d8f87d9dd7b07 100644
--- a/chrome/test/mini_installer/test_installer.py
+++ b/chrome/test/mini_installer/test_installer.py
@@ -335,8 +335,8 @@ def _FullResults(suite, result, metadata):
   failed_test_names = _FailedTestNames(result)
 
   full_results['num_failures_by_type'] = {
-      'Failure': len(failed_test_names),
-      'Pass': len(all_test_names) - len(failed_test_names),
+      'FAIL': len(failed_test_names),
+      'PASS': len(all_test_names) - len(failed_test_names),
   }
 
   full_results['tests'] = {}