|  | @@ -639,7 +639,7 @@ void XdsClient::ChannelState::AdsCallState::OnResponseReceived(
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				|  |  |  }
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				|  |  |  
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				|  |  |  void XdsClient::ChannelState::AdsCallState::OnResponseReceivedLocked(
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				|  |  | -    void* arg, grpc_error* error) {
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				|  |  | +    void* arg, grpc_error* /*error*/) {
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				|  |  |    AdsCallState* ads_calld = static_cast<AdsCallState*>(arg);
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				|  |  |    XdsClient* xds_client = ads_calld->xds_client();
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				|  |  |    // Empty payload means the call was cancelled.
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				|  | @@ -1083,7 +1083,7 @@ void XdsClient::ChannelState::LrsCallState::OnInitialRequestSent(
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				|  |  |  }
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				|  |  |  
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				|  |  |  void XdsClient::ChannelState::LrsCallState::OnInitialRequestSentLocked(
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				|  |  | -    void* arg, grpc_error* error) {
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				|  |  | +    void* arg, grpc_error* /*error*/) {
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				|  |  |    LrsCallState* lrs_calld = static_cast<LrsCallState*>(arg);
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				|  |  |    // Clear the send_message_payload_.
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				|  |  |    grpc_byte_buffer_destroy(lrs_calld->send_message_payload_);
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				|  | @@ -1102,7 +1102,7 @@ void XdsClient::ChannelState::LrsCallState::OnResponseReceived(
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				|  |  |  }
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				|  |  |  
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				|  |  |  void XdsClient::ChannelState::LrsCallState::OnResponseReceivedLocked(
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				|  |  | -    void* arg, grpc_error* error) {
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				|  |  | +    void* arg, grpc_error* /*error*/) {
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				|  |  |    LrsCallState* lrs_calld = static_cast<LrsCallState*>(arg);
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				|  |  |    XdsClient* xds_client = lrs_calld->xds_client();
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				|  |  |    // Empty payload means the call was cancelled.
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				|  | @@ -1286,17 +1286,17 @@ void XdsClient::Orphan() {
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				|  |  |    Unref(DEBUG_LOCATION, "XdsClient::Orphan()");
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::WatchClusterData(StringView cluster,
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				|  |  | -                                 UniquePtr<ClusterWatcherInterface> watcher) {
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				|  |  | +void XdsClient::WatchClusterData(
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				|  |  | +    StringView /*cluster*/, UniquePtr<ClusterWatcherInterface> /*watcher*/) {
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				|  |  |    // TODO(juanlishen): Implement.
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::CancelClusterDataWatch(StringView cluster,
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				|  |  | -                                       ClusterWatcherInterface* watcher) {
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				|  |  | +void XdsClient::CancelClusterDataWatch(StringView /*cluster*/,
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				|  |  | +                                       ClusterWatcherInterface* /*watcher*/) {
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				|  |  |    // TODO(juanlishen): Implement.
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::WatchEndpointData(StringView cluster,
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				|  |  | +void XdsClient::WatchEndpointData(StringView /*cluster*/,
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				|  |  |                                    UniquePtr<EndpointWatcherInterface> watcher) {
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				|  |  |    EndpointWatcherInterface* w = watcher.get();
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				|  |  |    cluster_state_.endpoint_watchers[w] = std::move(watcher);
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				|  | @@ -1308,7 +1308,7 @@ void XdsClient::WatchEndpointData(StringView cluster,
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				|  |  |    chand_->MaybeStartAdsCall();
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::CancelEndpointDataWatch(StringView cluster,
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				|  |  | +void XdsClient::CancelEndpointDataWatch(StringView /*cluster*/,
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				|  |  |                                          EndpointWatcherInterface* watcher) {
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				|  |  |    auto it = cluster_state_.endpoint_watchers.find(watcher);
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				|  |  |    if (it != cluster_state_.endpoint_watchers.end()) {
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				|  | @@ -1319,13 +1319,13 @@ void XdsClient::CancelEndpointDataWatch(StringView cluster,
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				|  |  |    }
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::AddClientStats(StringView cluster,
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				|  |  | +void XdsClient::AddClientStats(StringView /*cluster*/,
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				|  |  |                                 XdsClientStats* client_stats) {
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				|  |  |    cluster_state_.client_stats.insert(client_stats);
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				|  |  |    chand_->MaybeStartLrsCall();
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				|  |  |  }
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				|  |  |  
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				|  |  | -void XdsClient::RemoveClientStats(StringView cluster,
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				|  |  | +void XdsClient::RemoveClientStats(StringView /*cluster*/,
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				|  |  |                                    XdsClientStats* client_stats) {
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				|  |  |    // TODO(roth): In principle, we should try to send a final load report
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				|  |  |    // containing whatever final stats have been accumulated since the
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