[Blob] Blob paging to disk patch.

content/browser/fileapi/blob_storage_host.cc

 // Copyright 2014 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 "content/browser/fileapi/blob_storage_host.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 67 matching lines @@
     return;
   }
   if (!context_->MaybeStartAsyncBlobTransfer(uuid)) {
     cancel.Run(storage::IPCBlobCreationCancelCode::UNKNOWN);
     // Just in case we have it, let's cancel everything.
     context_->CleanupCanceledAsyncBlobTransfer(uuid);
     async_builder_.StopBuildingBlob(uuid);
     return;
   }
   async_builder_.StartBuildingBlob(
-      uuid, type, descriptions, context_->memory_available(),
+      uuid, type, descriptions, context_->memory_usage(),
       base::Bind(&NoopFileHandleAdapter, request_memory),
       base::Bind(&BlobStorageContext::FinishAsyncBlobTransfer,
                  context_->AsWeakPtr(), done, cancel),
       base::Bind(&BlobStorageContext::CancelAsyncBlobTransfer,
                  context_->AsWeakPtr(), uuid, cancel));
 }
 
 void BlobStorageHost::BlobMemoryResponses(
     const std::string& uuid,
     const std::vector<storage::BlobItemBytesResponse>& responses) {
@@ skipping 53 matching lines @@
 
 bool BlobStorageHost::IsBeingBuiltInHost(const std::string& uuid) {
   return IsInUseInHost(uuid) && (context_->IsBlobConstructing(uuid));
 }
 
 bool BlobStorageHost::IsUrlRegisteredInHost(const GURL& blob_url) {
   return public_blob_urls_.find(blob_url) != public_blob_urls_.end();
 }
 
 }  // namespace content