Fix PersonalDataManagerTest::CreateDataForTest on Release builds

The ModelTypeSet(ModelType) constructor does not create a
ModelTypeSet containing only ModelType.
On debug builds, the variable initializations of bitset to 0 make the
test working as expected.
On release builds, the preferred data types is set to a random value.
Fix by calling an explicit ModelTypeSet constructor.

Bug: 837553
Change-Id: I55c83a16ce391fdc908f0247d2dd1c7e510d54d7
Reviewed-on: https://chromium-review.googlesource.com/1039192Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Commit-Queue: Olivier Robin <olivierrobin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555371}

components/autofill/core/browser/personal_data_manager_unittest.cc

@@ -5692,14 +5692,9 @@ TEST_F(PersonalDataManagerTest, RemoveExpiredCreditCardsNotUsedSinceTimestamp) {
   }
 }
 
-#if !defined(OS_IOS)
-#define MAYBE_CreateDataForTest CreateDataForTest
-#else
-#define MAYBE_CreateDataForTest DISABLED_CreateDataForTest
-#endif
-TEST_F(PersonalDataManagerTest, MAYBE_CreateDataForTest) {
+TEST_F(PersonalDataManagerTest, CreateDataForTest) {
   // Disable sync so the data gets created.
-  sync_service_.SetPreferredDataTypes(syncer::ModelType::UNSPECIFIED);
+  sync_service_.SetPreferredDataTypes(syncer::ModelTypeSet());
 
   // By default, the creation of test data is disabled.
   ResetPersonalDataManager(USER_MODE_NORMAL);