Make LevelDBObserver an associated interface to LevelDBWrapper.

content/renderer/dom_storage/local_storage_cached_area.h

 // Copyright 2016 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 CONTENT_RENDERER_DOM_STORAGE_LOCAL_STORAGE_CACHED_AREA_H_
 #define CONTENT_RENDERER_DOM_STORAGE_LOCAL_STORAGE_CACHED_AREA_H_
 
 #include <map>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/nullable_string16.h"
 #include "content/common/leveldb_wrapper.mojom.h"
-#include "mojo/public/cpp/bindings/binding.h"
+#include "mojo/public/cpp/bindings/associated_binding.h"
 #include "url/gurl.h"
 #include "url/origin.h"
 
 namespace content {
 class DOMStorageMap;
 class LocalStorageArea;
 class LocalStorageCachedAreas;
 
 namespace mojom {
 class StoragePartitionService;
@@ skipping 69 matching lines @@
 
   // Resets the object back to its newly constructed state.
   void Reset();
 
   url::Origin origin_;
   scoped_refptr<DOMStorageMap> map_;
   std::map<base::string16, int> ignore_key_mutations_;
   bool ignore_all_mutations_ = false;
   std::string get_all_request_id_;
   mojom::LevelDBWrapperPtr leveldb_;
-  mojo::Binding<mojom::LevelDBObserver> binding_;
+  mojo::AssociatedBinding<mojom::LevelDBObserver> binding_;
   LocalStorageCachedAreas* cached_areas_;
   std::map<std::string, LocalStorageArea*> areas_;
   base::WeakPtrFactory<LocalStorageCachedArea> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LocalStorageCachedArea);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DOM_STORAGE_LOCAL_STORAGE_CACHED_AREA_H_