incidentd can now handle multiple callers asking it for incident reports

Test: bit incident_test:* GtsIncidentManagerTestCases:*
Bug: 123543706
Change-Id: I9f671dd5d8b2ad139f952a23e575c2be16120459
diff --git a/cmds/statsd/src/metrics/EventMetricProducer.cpp b/cmds/statsd/src/metrics/EventMetricProducer.cpp
index 5435c84..69816cb 100644
--- a/cmds/statsd/src/metrics/EventMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/EventMetricProducer.cpp
@@ -90,12 +90,12 @@
     std::unique_ptr<std::vector<uint8_t>> buffer(new std::vector<uint8_t>(bufferSize));
 
     size_t pos = 0;
-    auto it = protoOutput.data();
-    while (it.readBuffer() != NULL) {
-        size_t toRead = it.currentToRead();
-        std::memcpy(&((*buffer)[pos]), it.readBuffer(), toRead);
+    sp<android::util::ProtoReader> reader = protoOutput.data();
+    while (reader->readBuffer() != NULL) {
+        size_t toRead = reader->currentToRead();
+        std::memcpy(&((*buffer)[pos]), reader->readBuffer(), toRead);
         pos += toRead;
-        it.rp()->move(toRead);
+        reader->move(toRead);
     }
 
     return buffer;