[BlobAsync] Patch 2: Common Constants

storage/browser/blob/blob_data_item.cc

 // Copyright (c) 2015 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 "storage/browser/blob/blob_data_item.h"
 
 namespace storage {
 
 BlobDataItem::DataHandle::~DataHandle() {
 }
@@ skipping 18 matching lines @@
                            int disk_cache_stream_index)
     : item_(item.Pass()),
       data_handle_(data_handle),
       disk_cache_entry_(entry),
       disk_cache_stream_index_(disk_cache_stream_index) {
 }
 
 BlobDataItem::~BlobDataItem() {
 }
 
+std::ostream& operator<<(std::ostream& os, const BlobDataItem& x) {
+  os << "<BlobDataItem>{item: " << x.data_element()
+     << ", has_data_handle: " << (x.data_handle_.get() ? "true" : "false")
+     << ", disk_cache_entry_ptr: " << x.disk_cache_entry_
+     << ", disk_cache_stream_index_: " << x.disk_cache_stream_index_ << "}";
+  return os;
+}
+
 }  // namespace storage