Simplify specifiers when all platforms are covered, and sort lines.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py
index 3622121a8a01b0acd05e8f2f70f8ca241e94b53e..624de3eb58e524c5c1c20088393af2ba7fcc5b10 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater.py
@@ -256,7 +256,7 @@ class WPTExpectationsUpdater(object):
             ['BUG_URL [PLATFORM(S)] TEST_NAME [EXPECTATION(S)]']
         """
         line_list = []
-        for test_name, port_results in merged_results.iteritems():
+        for test_name, port_results in sorted(merged_results.iteritems()):
             for port_names in sorted(port_results):
                 if test_name.startswith('external'):
                     line_parts = [port_results[port_names]['bug']]
@@ -339,7 +339,7 @@ class WPTExpectationsUpdater(object):
             if version_specifiers.issubset(specifiers):
                 specifiers -= version_specifiers
                 specifiers.add(macro_specifier)
-        if specifiers == set(configuration_specifier_macros):
+        if specifiers == {macro.lower() for macro in configuration_specifier_macros.keys()}:
             return []
         return sorted(specifier.capitalize() for specifier in specifiers)