[Sync] Parse and save per-data type throttle data

chrome/browser/sync/protocol/sync_protocol_error.h

Index: chrome/browser/sync/protocol/sync_protocol_error.h
diff --git a/chrome/browser/sync/protocol/sync_protocol_error.h b/chrome/browser/sync/protocol/sync_protocol_error.h
index 0544aa00aa185264681fad2ed118ff8ab4ac3d4f..5aac3322fd70d78c966f2d58cc1da6581e60234a 100644
--- a/chrome/browser/sync/protocol/sync_protocol_error.h
+++ b/chrome/browser/sync/protocol/sync_protocol_error.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/values.h"
+#include "chrome/browser/sync/syncable/model_type.h"
 
 namespace browser_sync{
 
@@ -67,6 +68,7 @@ struct SyncProtocolError {
   std::string error_description;
   std::string url;
   ClientAction action;
+  syncable::ModelTypeSet throttled_types;
   SyncProtocolError();
   ~SyncProtocolError();
   DictionaryValue* ToValue() const;