Add new E2E sync multi profiles tests. This should not affect any existing

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 4c04a90366baa4baad7c6d8f427ce7f2cfa080f0..df6eb69b83e03779554594046918657e917bfec5 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -1257,6 +1257,7 @@
       'browser/sync/test/integration/two_client_autofill_sync_test.cc',
       'browser/sync/test/integration/two_client_bookmarks_sync_test.cc',
       'browser/sync/test/integration/two_client_dictionary_sync_test.cc',
+      'browser/sync/test/integration/two_client_e2e_test.cc',
       'browser/sync/test/integration/two_client_extension_settings_and_app_settings_sync_test.cc',
       'browser/sync/test/integration/two_client_extensions_sync_test.cc',
       'browser/sync/test/integration/two_client_passwords_sync_test.cc',
@@ -1293,6 +1294,8 @@
       'browser/sync/test/integration/passwords_helper.h',
       'browser/sync/test/integration/p2p_invalidation_forwarder.cc',
       'browser/sync/test/integration/p2p_invalidation_forwarder.h',
+      'browser/sync/test/integration/p2p_sync_refresher.cc',
+      'browser/sync/test/integration/p2p_sync_refresher.h',
       'browser/sync/test/integration/preferences_helper.cc',
       'browser/sync/test/integration/preferences_helper.h',
       'browser/sync/test/integration/profile_sync_service_harness.cc',