Domain Reliability: Remove browsing data when requested.

components/domain_reliability/clear_mode.h

Index: components/domain_reliability/clear_mode.h
diff --git a/components/domain_reliability/clear_mode.h b/components/domain_reliability/clear_mode.h
new file mode 100644
index 0000000000000000000000000000000000000000..4788ac56b2465240965701c5a1a5cd90ca0f7993
--- /dev/null
+++ b/components/domain_reliability/clear_mode.h
@@ -0,0 +1,26 @@
+// 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 COMPONENTS_DOMAIN_RELIABILITY_CLEAR_MODE_H_
+#define COMPONENTS_DOMAIN_RELIABILITY_CLEAR_MODE_H_
+
+#include "components/domain_reliability/domain_reliability_export.h"
+
+namespace domain_reliability {
+
+// Argument to DomainReliabilityMonitor::ClearBrowsingData.
+enum DOMAIN_RELIABILITY_EXPORT DomainReliabilityClearMode {
+  // Clear accumulated beacons (which betray browsing history) but leave
+  // registered contexts intact.
+  CLEAR_BEACONS,
+
+  // Clear registered contexts (which can act like cookies).
+  CLEAR_CONTEXTS,
+
+  MAX_CLEAR_MODE
+};
+
+}  // namespace domain_reliability
+
+#endif  // COMPONENTS_DOMAIN_RELIABILITY_CLEAR_MODE_H_