[IndexedDB] Hold referenced to IDB::put blobs in the IDBRequest

content/browser/blob_storage/blob_dispatcher_host.cc

 // 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.
 
 #include "content/browser/blob_storage/blob_dispatcher_host.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 52 matching lines @@
     scoped_refptr<storage::FileSystemContext> file_system_context)
     : BrowserMessageFilter(BlobMsgStart),
       process_id_(process_id),
       file_system_context_(std::move(file_system_context)),
       blob_storage_context_(std::move(blob_storage_context)) {}
 
 BlobDispatcherHost::~BlobDispatcherHost() {
   ClearHostFromBlobStorageContext();
 }
 
+void BlobDispatcherHost::AckBlobRecievedFromIDB(const std::string& uuid) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  OnDecrementBlobRefCount(uuid);
+}
+
 void BlobDispatcherHost::OnChannelClosing() {
   ClearHostFromBlobStorageContext();
   public_blob_urls_.clear();
   blobs_inuse_map_.clear();
 }
 
 bool BlobDispatcherHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   // Note: The only time a renderer sends a blob status message is to cancel.
   IPC_BEGIN_MESSAGE_MAP(BlobDispatcherHost, message)
@@ skipping 283 matching lines @@
   BlobStorageContext* context = this->context();
   for (const auto& url : public_blob_urls_) {
     context->RevokePublicBlobURL(url);
   }
   // Keep the blobs alive for the BlobTransportHost call.
   transport_host_.CancelAll(context);
   blobs_inuse_map_.clear();
 }
 
 }  // namespace content