More fine-grained pruning in safe browsing incident reporting service.

chrome/browser/safe_browsing/incident_handler_util.h

+// 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.
+
+#ifndef CHROME_BROWSER_SAFE_BROWSING_INCIDENT_HANDLER_UTIL_H_
+#define CHROME_BROWSER_SAFE_BROWSING_INCIDENT_HANDLER_UTIL_H_
+
+#include <stdint.h>
+
+namespace google {
+namespace protobuf {
+
+class MessageLite;
+
+}  // namespace protobuf
+}  // namespace google
+
+namespace safe_browsing {
+
+// Computes a simple hash digest over the serialized form of |message|.
+// |message| must be in a canonical form.
+uint32_t HashMessage(const google::protobuf::MessageLite& message);
+
+}  // namespace safe_browsing
+
+#endif  // CHROME_BROWSER_SAFE_BROWSING_INCIDENT_HANDLER_UTIL_H_