| Index: chrome/browser/sync/sessions/sessions_sync_manager_unittest.cc
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| diff --git a/chrome/browser/sync/sessions/sessions_sync_manager_unittest.cc b/chrome/browser/sync/sessions/sessions_sync_manager_unittest.cc
 | 
| index e011d0d15c085f300c459ee20e2291a976845819..e8240e9ca57db791381fe2dd72a4f8de8ded6297 100644
 | 
| --- a/chrome/browser/sync/sessions/sessions_sync_manager_unittest.cc
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| +++ b/chrome/browser/sync/sessions/sessions_sync_manager_unittest.cc
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| @@ -1045,8 +1045,9 @@ TEST_F(SessionsSyncManagerTest, MergeWithLocalAndForeignTabs) {
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|    for (int i = 1; i < 3; i++) {
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|      EXPECT_TRUE(output[i].IsValid());
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|      const SyncData data(output[i].sync_data());
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| -    EXPECT_TRUE(base::StartsWithASCII(syncer::SyncDataLocal(data).GetTag(),
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| -                                      manager()->current_machine_tag(), true));
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| +    EXPECT_TRUE(base::StartsWith(syncer::SyncDataLocal(data).GetTag(),
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| +                                 manager()->current_machine_tag(),
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| +                                 base::CompareCase::SENSITIVE));
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|      const sync_pb::SessionSpecifics& specifics(data.GetSpecifics().session());
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|      EXPECT_EQ(manager()->current_machine_tag(), specifics.session_tag());
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|    }
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| @@ -1479,15 +1480,17 @@ TEST_F(SessionsSyncManagerTest, AssociateWindowsDontReloadTabs) {
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|    EXPECT_EQ(3U, out.size());  // Tab add, update, and header update.
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|  
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|    EXPECT_TRUE(
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| -      base::StartsWithASCII(syncer::SyncDataLocal(out[0].sync_data()).GetTag(),
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| -                            manager()->current_machine_tag(), true));
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| +      base::StartsWith(syncer::SyncDataLocal(out[0].sync_data()).GetTag(),
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| +                       manager()->current_machine_tag(),
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| +                       base::CompareCase::SENSITIVE));
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|    EXPECT_EQ(manager()->current_machine_tag(),
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|              out[0].sync_data().GetSpecifics().session().session_tag());
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|    EXPECT_EQ(SyncChange::ACTION_ADD, out[0].change_type());
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|  
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|    EXPECT_TRUE(
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| -      base::StartsWithASCII(syncer::SyncDataLocal(out[1].sync_data()).GetTag(),
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| -                            manager()->current_machine_tag(), true));
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| +      base::StartsWith(syncer::SyncDataLocal(out[1].sync_data()).GetTag(),
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| +                       manager()->current_machine_tag(),
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| +                       base::CompareCase::SENSITIVE));
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|    EXPECT_EQ(manager()->current_machine_tag(),
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|              out[1].sync_data().GetSpecifics().session().session_tag());
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|    EXPECT_TRUE(out[1].sync_data().GetSpecifics().session().has_tab());
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| @@ -1541,8 +1544,9 @@ TEST_F(SessionsSyncManagerTest, OnLocalTabModified) {
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|      SCOPED_TRACE(i);
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|      EXPECT_TRUE(out[i].IsValid());
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|      const SyncData data(out[i].sync_data());
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| -    EXPECT_TRUE(base::StartsWithASCII(syncer::SyncDataLocal(data).GetTag(),
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| -                                      manager()->current_machine_tag(), true));
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| +    EXPECT_TRUE(base::StartsWith(syncer::SyncDataLocal(data).GetTag(),
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| +                                 manager()->current_machine_tag(),
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| +                                 base::CompareCase::SENSITIVE));
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|      const sync_pb::SessionSpecifics& specifics(data.GetSpecifics().session());
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|      EXPECT_EQ(manager()->current_machine_tag(), specifics.session_tag());
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|      if (i % 6 == 0) {
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| @@ -1649,8 +1653,9 @@ TEST_F(SessionsSyncManagerTest, MergeLocalSessionExistingTabs) {
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|    for (int i = 1; i < 5; i++) {
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|      EXPECT_TRUE(out[i].IsValid());
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|      const SyncData data(out[i].sync_data());
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| -    EXPECT_TRUE(base::StartsWithASCII(syncer::SyncDataLocal(data).GetTag(),
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| -                                      manager()->current_machine_tag(), true));
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| +    EXPECT_TRUE(base::StartsWith(syncer::SyncDataLocal(data).GetTag(),
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| +                                 manager()->current_machine_tag(),
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| +                                 base::CompareCase::SENSITIVE));
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|      const sync_pb::SessionSpecifics& specifics(data.GetSpecifics().session());
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|      EXPECT_EQ(manager()->current_machine_tag(), specifics.session_tag());
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|      if (i % 2 == 1) {
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| 
 |