Domain Reliability: Remove browsing data when requested.

components/domain_reliability/monitor.h

Index: components/domain_reliability/monitor.h
diff --git a/components/domain_reliability/monitor.h b/components/domain_reliability/monitor.h
index 003a42c2662dbb58b88d8ba97027d000fb5812e8..be01dbf500b8163dfc3de90196f7926aacbc02ad 100644
--- a/components/domain_reliability/monitor.h
+++ b/components/domain_reliability/monitor.h
@@ -10,6 +10,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "components/domain_reliability/beacon.h"
+#include "components/domain_reliability/clear_mode.h"
 #include "components/domain_reliability/config.h"
 #include "components/domain_reliability/context.h"
 #include "components/domain_reliability/dispatcher.h"
@@ -51,10 +52,19 @@ class DOMAIN_RELIABILITY_EXPORT DomainReliabilityMonitor {
   void OnBeforeRedirect(net::URLRequest* request);
   void OnCompleted(net::URLRequest* request, bool started);
 
+  // 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);
+
   DomainReliabilityContext* AddContextForTesting(
       scoped_ptr<const DomainReliabilityConfig> config);
 
   size_t contexts_size_for_testing() const { return contexts_.size(); }
+  bool was_cleared_for_testing() const { return was_cleared_; }
+  DomainReliabilityClearMode cleared_mode_for_testing() const {
+    return cleared_mode_;
+  }
 
  private:
   friend class DomainReliabilityMonitorTest;
@@ -91,6 +101,9 @@ class DOMAIN_RELIABILITY_EXPORT DomainReliabilityMonitor {
   scoped_ptr<DomainReliabilityUploader> uploader_;
   ContextMap contexts_;
 
+  bool was_cleared_;
+  DomainReliabilityClearMode cleared_mode_;
+
   DISALLOW_COPY_AND_ASSIGN(DomainReliabilityMonitor);
 };