In print-stale-test-expectations-entries, avoid repeating the same request.

third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries

Index: third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries
diff --git a/third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries b/third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries
index 0ae5d9cb4a4e0da79804f66641d33da4269dbe57..20c76099660c970c915ee6b8a074f11487a1dc51 100755
--- a/third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries
+++ b/third_party/WebKit/Tools/Scripts/print-stale-test-expectations-entries
@@ -52,8 +52,13 @@ class StaleTestPrinter(object):
     def __init__(self, options):
         self.days = options.days
         self.create_csv = options.create_csv
+        self.is_stale_results = {}
 
     def is_stale(self, bug_link):
+        if bug_link in self.is_stale_results:
+            return self.is_stale_results[bug_link]
+        # In case there's an error in the request, don't make the same request again.
+        self.is_stale_results[bug_link] = False
         bug_number = bug_link.strip(crbug_prefix)
         url = google_code_url % bug_number
         response = urllib2.urlopen(url)
@@ -61,7 +66,8 @@ class StaleTestPrinter(object):
         last_updated = parsed['updated']
         parsed_time = datetime.datetime.strptime(last_updated.split(".")[0] + "UTC", "%Y-%m-%dT%H:%M:%S%Z")
         time_delta = datetime.datetime.now() - parsed_time
-        return time_delta.days > self.days
+        self.is_stale_results[bug_link] = time_delta.days > self.days
+        return self.is_stale_results[bug_link]
 
     def print_stale_tests(self):
         host = Host()