Coverity: Pass parameters by reference.

chrome/browser/sync/glue/bookmark_model_associator.h

Index: chrome/browser/sync/glue/bookmark_model_associator.h
diff --git a/chrome/browser/sync/glue/bookmark_model_associator.h b/chrome/browser/sync/glue/bookmark_model_associator.h
index 8dce2876015c6413247d76fc9cd81b826e11ec2b..37b8e35be85cc09879dd7052f380ac1d6aba1544 100644
--- a/chrome/browser/sync/glue/bookmark_model_associator.h
+++ b/chrome/browser/sync/glue/bookmark_model_associator.h
@@ -61,7 +61,7 @@ class BookmarkModelAssociator
   // Returns sync id for the given bookmark node id.
   // Returns sync_api::kInvalidId if the sync node is not found for the given
   // bookmark node id.
-  virtual int64 GetSyncIdFromChromeId(int64 node_id);
+  virtual int64 GetSyncIdFromChromeId(const int64& node_id);
 
   // Returns the bookmark node for the given sync id.
   // Returns NULL if no bookmark node is found for the given sync id.
@@ -70,7 +70,7 @@ class BookmarkModelAssociator
   // Initializes the given sync node from the given bookmark node id.
   // Returns false if no sync node was found for the given bookmark node id or
   // if the initialization of sync node fails.
-  virtual bool InitSyncNodeFromChromeId(int64 node_id,
+  virtual bool InitSyncNodeFromChromeId(const int64& node_id,
                                         sync_api::BaseNode* sync_node);
 
   // Associates the given bookmark node with the given sync id.