Added Protector, hooked up DSE verification with error bubble.

chrome/browser/protector/histograms.h

+// Copyright (c) 2011 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_PROTECTOR_HISTOGRAMS_H_
+#define CHROME_BROWSER_PROTECTOR_HISTOGRAMS_H_
+#pragma once
+
+namespace protector {
+
+// Histogram name to report protection errors for the default search
+// provider.
+extern const char kProtectorHistogramDefaultSearchProvider[];
+
+// Protector histogram values.
+enum ProtectorError {
+  kProtectorErrorBackupInvalid,
+  kProtectorErrorValueChanged,
+
+  // This is for convenience only, must always be the last.
+  kProtectorErrorCount
+};
+
+}  // namespace protector
+
+#endif  // CHROME_BROWSER_PROTECTOR_HISTOGRAMS_H_
+