[BlobAsync] Patch 4: Browser Classes & Logic.

storage/browser/blob/blob_storage_context.h

Index: storage/browser/blob/blob_storage_context.h
diff --git a/storage/browser/blob/blob_storage_context.h b/storage/browser/blob/blob_storage_context.h
index cf73c8a28f881e0bc0c7d13c5720d1550a27e4ad..eba8abea16e9efa6852b78f3646335120360def4 100644
--- a/storage/browser/blob/blob_storage_context.h
+++ b/storage/browser/blob/blob_storage_context.h
@@ -55,7 +55,10 @@ class STORAGE_EXPORT BlobStorageContext
   // 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);