Treat inttest files as test files in PRESUBMIT

e.g. navigation_and_load_inttest.mm

Change-Id: I70fd08b18e49afbbcd060957bf76ef1e5db1bc20
Reviewed-on: https://chromium-review.googlesource.com/891675Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Steven Holte <holte@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532582}

PRESUBMIT.py

@@ -41,7 +41,7 @@ _IMPLEMENTATION_EXTENSIONS = r'\.(cc|cpp|cxx|mm)$'
 _TEST_CODE_EXCLUDED_PATHS = (
     r'.*[\\\/](fake_|test_|mock_).+%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.+_test_(base|support|util)%s' % _IMPLEMENTATION_EXTENSIONS,
-    r'.+_(api|browser|eg|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
+    r'.+_(api|browser|eg|int|perf|pixel|unit|ui)?test(_[a-z]+)?%s' %
         _IMPLEMENTATION_EXTENSIONS,
     r'.+profile_sync_service_harness%s' % _IMPLEMENTATION_EXTENSIONS,
     r'.*[\\\/](test|tool(s)?)[\\\/].*',