Simulate transient error and verify exponential backoff.

chrome/browser/sync/sessions/session_state_unittest.cc

Index: chrome/browser/sync/sessions/session_state_unittest.cc
diff --git a/chrome/browser/sync/sessions/session_state_unittest.cc b/chrome/browser/sync/sessions/session_state_unittest.cc
index c12facd183a2e1fd7398c35878b657005d47bde8..abc48e76e413a8bcb192a69eb6c89346ece280b7 100644
--- a/chrome/browser/sync/sessions/session_state_unittest.cc
+++ b/chrome/browser/sync/sessions/session_state_unittest.cc
@@ -8,6 +8,7 @@
 
 #include "base/base64.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/time.h"
 #include "base/values.h"
 #include "chrome/test/base/values_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -160,7 +161,8 @@ TEST_F(SessionStateTest, SyncSessionSnapshotToValue) {
                                kNumConflictingUpdates,
                                kDidCommitItems,
                                source,
-                               0);
+                               0,
+                               base::Time::Now());
   scoped_ptr<DictionaryValue> value(snapshot.ToValue());
   EXPECT_EQ(14u, value->size());
   ExpectDictDictionaryValue(*expected_syncer_status_value, *value,