Server directed error handling backend code.

chrome/browser/sync/sessions/session_state.cc

Index: chrome/browser/sync/sessions/session_state.cc
diff --git a/chrome/browser/sync/sessions/session_state.cc b/chrome/browser/sync/sessions/session_state.cc
index 96aafe5b357dbd2006b3a9792ca05ce15c22e987..9874ab7302a6bccb005d31ded6aecd3d673d5b6f 100644
--- a/chrome/browser/sync/sessions/session_state.cc
+++ b/chrome/browser/sync/sessions/session_state.cc
@@ -125,7 +125,8 @@ SyncSessionSnapshot::SyncSessionSnapshot(
     bool did_commit_items,
     const SyncSourceInfo& source,
     size_t num_entries,
-    base::Time sync_start_time)
+    base::Time sync_start_time,
+    sync_api::SyncError sync_error)
     : syncer_status(syncer_status),
       errors(errors),
       num_server_changes_remaining(num_server_changes_remaining),
@@ -140,7 +141,8 @@ SyncSessionSnapshot::SyncSessionSnapshot(
       did_commit_items(did_commit_items),
       source(source),
       num_entries(num_entries),
-      sync_start_time(sync_start_time) {
+      sync_start_time(sync_start_time),
+      sync_error(sync_error) {
   for (int i = syncable::FIRST_REAL_MODEL_TYPE;
        i < syncable::MODEL_TYPE_COUNT; ++i) {
     const_cast<std::string&>(this->download_progress_markers[i]).assign(
@@ -384,7 +386,8 @@ AllModelTypeState::AllModelTypeState(bool* dirty_flag)
       syncer_status(dirty_flag),
       error_counters(dirty_flag),
       num_server_changes_remaining(dirty_flag, 0),
-      commit_set(ModelSafeRoutingInfo()) {
+      commit_set(ModelSafeRoutingInfo()),
+      sync_error(dirty_flag) {
 }
 
 AllModelTypeState::~AllModelTypeState() {}