[BlobAsync] Patch 4: Browser Classes & Logic.

storage/browser/blob/blob_storage_context.h

 // Copyright (c) 2013 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 STORAGE_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_
 #define STORAGE_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 37 matching lines @@
   scoped_ptr<BlobDataHandle> GetBlobDataFromUUID(const std::string& uuid);
   scoped_ptr<BlobDataHandle> GetBlobDataFromPublicURL(const GURL& url);
 
   // Useful for coining blobs from within the browser process. If the
   // blob cannot be added due to memory consumption, returns NULL.
   // A builder should not be used twice to create blobs, as the internal
   // resources are refcounted instead of copied for memory efficiency.
   // To cleanly use a builder multiple times, please call Clone() on the
   // builder, or even better for memory savings, clear the builder and append
   // the previously constructed blob.
-  scoped_ptr<BlobDataHandle> AddFinishedBlob(BlobDataBuilder* builder);
+  scoped_ptr<BlobDataHandle> AddFinishedBlob(const BlobDataBuilder& builder);
+
+  // Deprecated, use const ref version above.
+  scoped_ptr<BlobDataHandle> AddFinishedBlob(const BlobDataBuilder* builder);
 
   // Useful for coining blob urls from within the browser process.
   bool RegisterPublicBlobURL(const GURL& url, const std::string& uuid);
   void RevokePublicBlobURL(const GURL& url);
 
   size_t memory_usage() const { return memory_usage_; }
   size_t blob_count() const { return blob_map_.size(); }
 
  private:
   friend class content::BlobStorageHost;
@@ skipping 68 matching lines @@
   // we count only the items of TYPE_DATA which are held in memory and not
   // items of TYPE_FILE.
   size_t memory_usage_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobStorageContext);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_