Download Service : Added leveldb proto layer

components/download/internal/model.h

 // Copyright 2017 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 COMPONENTS_DOWNLOAD_INTERNAL_MODEL_H_
 #define COMPONENTS_DOWNLOAD_INTERNAL_MODEL_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 14 matching lines @@
   class Client {
    public:
     virtual ~Client() = default;
 
     // Called asynchronously in response to a Model::Initialize call.  If
     // |success| is |false|, initialization of the Model and/or the underlying
     // Store failed.  Initialization of the Model is complete after this
     // callback.  If |success| is true it can be accessed now.
     virtual void OnInitialized(bool success) = 0;
 
-    // Called asynchronously in response to a Model::Destroy call.  If |success|
-    // is |false|, destruction of the Model and/or the underlying Store failed.
+    // Called asynchronously in response to a Model::Destroy call.
     // Destruction of the Model is effectively complete after this callback.
-    virtual void OnDestroyed(bool success) = 0;
+    virtual void OnDestroyed() = 0;
 
     // Called when an Entry addition is complete.  |success| determines whether
     // or not the entry has been successfully persisted to the Store.
     virtual void OnItemAdded(bool success,
                              DownloadClient client,
                              const std::string& guid) = 0;
 
     // Called when an Entry update is complete.  |success| determines whether or
     // not the update has been successfully persisted to the Store.
     virtual void OnItemUpdated(bool success,
@@ skipping 40 matching lines @@
   // Returns a temporary list of Entry objects that this Model stores.
   // IMPORTANT NOTE: Like Get(), the result of this method should be used
   // immediately and NOT stored.  The underlying data may get updated or removed
   // by any other modifications to this model.
   virtual EntryList PeekEntries() = 0;
 };
 
 }  // namespace download
 
 #endif  // COMPONENTS_DOWNLOAD_INTERNAL_MODEL_H_