Domain Reliability: Remove browsing data when requested.

components/domain_reliability/context.cc

Index: components/domain_reliability/context.cc
diff --git a/components/domain_reliability/context.cc b/components/domain_reliability/context.cc
index 24ff32954ee4b9fc51cd5f11278fb654cbbf2ae3..fb559d1f6b2865a26039e644d544494c5400d572 100644
--- a/components/domain_reliability/context.cc
+++ b/components/domain_reliability/context.cc
@@ -95,6 +95,21 @@ void DomainReliabilityContext::AddBeacon(
   UMA_HISTOGRAM_BOOLEAN("DomainReliability.AddBeaconDidEvict", evicted);
 }
 
+void DomainReliabilityContext::ClearBeacons() {
+  ResourceStateVector::iterator it;
+  for (it = states_.begin(); it != states_.end(); ++it) {
+    ResourceState* state = *it;
+    state->beacons.clear();
+    state->successful_requests = 0;
+    state->failed_requests = 0;
+    state->uploading_beacons_size = 0;
+    state->uploading_successful_requests = 0;
+    state->uploading_failed_requests = 0;
+  }
+  beacon_count_ = 0;
+  uploading_beacon_count_ = 0;
+}
+
 void DomainReliabilityContext::GetQueuedDataForTesting(
     int resource_index,
     std::vector<DomainReliabilityBeacon>* beacons_out,