Implement origin-based deletion for the domain reliability service.

components/domain_reliability/monitor.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 COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_
 #define COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 93 matching lines @@
   // Should be called when |request| is complete. Will examine and possibly
   // log the (final) request. |started| should be true if the request was
   // actually started before it was terminated. Must be called after
   // |SetDiscardUploads|.
   void OnCompleted(net::URLRequest* request, bool started);
 
   // net::NetworkChangeNotifier::NetworkChangeObserver implementation:
   void OnNetworkChanged(
       net::NetworkChangeNotifier::ConnectionType type) override;
 
-  // Called to remove browsing data. With CLEAR_BEACONS, leaves contexts in
-  // place but clears beacons (which betray browsing history); with
-  // CLEAR_CONTEXTS, removes all contexts (which can behave as cookies).
-  void ClearBrowsingData(DomainReliabilityClearMode mode);
+  // Called to remove browsing data for origins matched by |origin_filter|.
+  // With CLEAR_BEACONS, leaves contexts in place but clears beacons (which
+  // betray browsing history); with CLEAR_CONTEXTS, removes entire contexts
+  // (which can behave as cookies). A null |origin_filter| is interpreted
+  // as an always-true filter, indicating complete deletion.
+  void ClearBrowsingData(
+      DomainReliabilityClearMode mode,
+      const base::Callback<bool(const GURL&)>& origin_filter);
 
   // Gets a Value containing data that can be formatted into a web page for
   // debugging purposes.
   std::unique_ptr<base::Value> GetWebUIData() const;
 
   DomainReliabilityContext* AddContextForTesting(
       std::unique_ptr<const DomainReliabilityConfig> config);
 
   size_t contexts_size_for_testing() const {
     return context_manager_.contexts_size_for_testing();
@@ skipping 57 matching lines @@
   bool discard_uploads_set_;
 
   base::WeakPtrFactory<DomainReliabilityMonitor> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DomainReliabilityMonitor);
 };
 
 }  // namespace domain_reliability
 
 #endif  // COMPONENTS_DOMAIN_RELIABILITY_MONITOR_H_