Remove BindStateHolder and have Bind() return a Callback<> object directly.

chrome/browser/sync/internal_api/sync_manager.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/sync/internal_api/sync_manager.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/command_line.h"
@@ skipping 349 matching lines @@
       DictionaryValue* value = new DictionaryValue();
       value->SetInteger("totalCount", total_count);
       value->SetString("payload", payload);
       return value;
     }
   };
 
   typedef std::map<syncable::ModelType, NotificationInfo> NotificationInfoMap;
   typedef JsArgList
       (SyncManager::SyncInternal::*UnboundJsMessageHandler)(const JsArgList&);
-  typedef base::Callback<JsArgList(JsArgList)> JsMessageHandler;
+  typedef base::Callback<JsArgList(const JsArgList&)> JsMessageHandler;
   typedef std::map<std::string, JsMessageHandler> JsMessageHandlerMap;
 
   // Helper to call OnAuthError when no authentication credentials are
   // available.
   void RaiseAuthNeededEvent();
 
   // Determine if the parents or predecessors differ between the old and new
   // versions of an entry stored in |a| and |b|.  Note that a node's index may
   // change without its NEXT_ID changing if the node at NEXT_ID also moved (but
   // the relative order is unchanged).  To handle such cases, we rely on the
@@ skipping 1695 matching lines @@
     lookup->GetDownloadProgress(i.Get(), &marker);
 
     if (marker.token().empty())
       result.Put(i.Get());
 
   }
   return result;
 }
 
 }  // namespace sync_api