Coverity: Pass parameters by reference.

chrome/browser/sync/glue/autofill_profile_model_associator.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_AUTOFILL_PROFILE_MODEL_ASSOCIATOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_AUTOFILL_PROFILE_MODEL_ASSOCIATOR_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 57 matching lines @@
   virtual bool SyncModelHasUserCreatedNodes(bool* has_nodes);
 
   // See ModelAssociator interface.
   virtual void AbortAssociation();
 
   virtual const std::string* GetChromeNodeFromSyncId(
       int64 sync_id) {
     return NULL;
   }
 
-  virtual bool InitSyncNodeFromChromeId(std::string node_id,
+  virtual bool InitSyncNodeFromChromeId(const std::string& node_id,
                                         sync_api::BaseNode* sync_node) {
     return false;
   }
 
   // Returns the sync id for the given autofill name, or sync_api::kInvalidId
   // if the autofill name is not associated to any sync id.
-  virtual int64 GetSyncIdFromChromeId(std::string node_id);
+  virtual int64 GetSyncIdFromChromeId(const std::string& node_id);
 
   // Associates the given autofill name with the given sync id.
   virtual void Associate(const std::string* node, int64 sync_id);
 
   // Remove the association that corresponds to the given sync id.
   virtual void Disassociate(int64 sync_id);
 
   // TODO(lipalani) Bug 64111. Returns whether a node with the
   // given permanent tag was found and update
   // |sync_id| with that node's id. No current use. To Implement
@@ skipping 93 matching lines @@
   std::set<std::string> current_profiles;
   std::vector<std::string> profiles_to_delete;
   std::vector<AutoFillProfile*> updated_profiles;
   std::vector<AutoFillProfile*> new_profiles;  // We own these pointers.
   ~DataBundle() { STLDeleteElements(&new_profiles); }
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_AUTOFILL_PROFILE_MODEL_ASSOCIATOR_H_
-