Add IndexedDBValue wrapper class to group blob info with bits.

content/browser/indexed_db/indexed_db_value.h

Index: content/browser/indexed_db/indexed_db_value.h
diff --git a/content/browser/indexed_db/indexed_db_value.h b/content/browser/indexed_db/indexed_db_value.h
new file mode 100644
index 0000000000000000000000000000000000000000..3f695bb2535c6c8ed71f1ed038920ded81bca14f
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+++ b/content/browser/indexed_db/indexed_db_value.h
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+// Use of this source code is governed by a BSD-style license that can be

[cmumford, 2014/03/14 00:36:16]

Are you missing the first line of the copyright banner?

[ericu, 2014/03/14 01:17:23]

Done.

+// found in the LICENSE file.
+
+#ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_VALUE_H_
+#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_VALUE_H_
+
+#include <vector>
+#include "content/browser/indexed_db/indexed_db_blob_info.h"
+
+namespace content {
+
+struct IndexedDBValue {
+  IndexedDBValue() {}
+  IndexedDBValue(const std::string& input_bits,
+                 const std::vector<IndexedDBBlobInfo>& input_blob_info)
+      : bits(input_bits), blob_info(input_blob_info) {
+    DCHECK(!input_blob_info.size() || input_bits.size());
+  }
+
+  void swap(IndexedDBValue& value) {
+    bits.swap(value.bits);
+    blob_info.swap(value.blob_info);
+  }
+
+  bool empty() const { return bits.empty(); }
+  void clear() {
+    bits.clear();
+    blob_info.clear();
+  }
+
+  size_t SizeEstimate() const {
+    return bits.size() + blob_info.size() * sizeof(IndexedDBBlobInfo);
+  }
+
+  std::string bits;
+  std::vector<IndexedDBBlobInfo> blob_info;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_VALUE_H_