test cases for server directed error handling code.

chrome/browser/sync/test/integration/sync_test.h

Index: chrome/browser/sync/test/integration/sync_test.h
diff --git a/chrome/browser/sync/test/integration/sync_test.h b/chrome/browser/sync/test/integration/sync_test.h
index 7d1eaa155111cd74852935f866fa5bcdef7c34b3..db17ba39db77f41247464033a5ce7a7eabb100e4 100644
--- a/chrome/browser/sync/test/integration/sync_test.h
+++ b/chrome/browser/sync/test/integration/sync_test.h
@@ -16,6 +16,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/process_util.h"
+#include "chrome/browser/sync/protocol/sync_protocol_error.h"
 #include "chrome/browser/sync/syncable/model_type.h"
 #include "net/base/mock_host_resolver.h"
 #include "net/test/test_server.h"
@@ -173,6 +174,9 @@ class SyncTest : public InProcessBrowserTest {
   // this state until shut down.
   void TriggerTransientError();
 
+  // Triggers a sync error on the server.
+  void TriggerSyncError(const browser_sync::SyncProtocolError& error);
+
   // Triggers setting the sync_tabs field of the nigori node.
   void TriggerSetSyncTabs();