Add knowledge of EarlGrey test files to PRESUBMIT.py.

EarlGrey is the framework used for integration tests on iOS and the
corresponding test files are by convention named *_egtest.mm.  Add
the pattern to PRESUBMIT.py so that no warning is printed if there
is code calling test functions in those files.

Remove knowledge about KIF test files as this is no longer used.

BUG=666375

Review-Url: https://codereview.chromium.org/2582223002
Cr-Commit-Position: refs/heads/master@{#439432}

PRESUBMIT.py

@@ -38,7 +38,7 @@
 _TEST_CODE_EXCLUDED_PATHS = (
     r'.*[\\\/](fake_|test_|mock_).+%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.+_test_(base|support|util)%s' % _IMPLEMENTATION_EXTENSIONS,
-    r'.+_(api|browser|kif|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
+    r'.+_(api|browser|eg|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
         _IMPLEMENTATION_EXTENSIONS,
     r'.+profile_sync_service_harness%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.*[\\\/](test|tool(s)?)[\\\/].*',