Added incident report for variations seed signature mismatch.

chrome/browser/safe_browsing/incident_reporting/variations_seed_signature_incident_handlers.h

Index: chrome/browser/safe_browsing/incident_reporting/variations_seed_signature_incident_handlers.h
diff --git a/chrome/browser/safe_browsing/incident_reporting/variations_seed_signature_incident_handlers.h b/chrome/browser/safe_browsing/incident_reporting/variations_seed_signature_incident_handlers.h
new file mode 100644
index 0000000000000000000000000000000000000000..b367ec405f35cd8c661e912426b29ac1e93798b4
--- /dev/null
+++ b/chrome/browser/safe_browsing/incident_reporting/variations_seed_signature_incident_handlers.h
@@ -0,0 +1,27 @@
+// 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_REPORTING_VARIATIONS_SEED_SIGNATURE_INCIDENT_HANDLERS_H_
+#define CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_VARIATIONS_SEED_SIGNATURE_INCIDENT_HANDLERS_H_
+
+#include <stdint.h>
+
+#include <string>
+
+namespace safe_browsing {
+
+class ClientIncidentReport_IncidentData;
+
+// Returns a constant value since all incidents pertain to the same seed
+// signature.

[Alexei Svitkine (slow), 2014/10/14 18:15:06]

I don't understand this comment. I suggest explaining what the key is that's
reported - i.e. what it's for, etc.

[Georges Khalil, 2014/10/15 14:41:47]

Done.

+std::string GetVariationsSeedSignatureIncidentKey(
+    const ClientIncidentReport_IncidentData& incident_data);
+
+// Returns a digest of the invalid seed signature value.
+uint32_t GetVariationsSeedSignatureIncidentDigest(
+    const ClientIncidentReport_IncidentData& incident_data);
+
+}  // namespace safe_browsing
+
+#endif  // CHROME_BROWSER_SAFE_BROWSING_INCIDENT_REPORTING_VARIATIONS_SEED_SIGNATURE_INCIDENT_HANDLERS_H_