Carry the client ID from the database all the way through upload

snapshot/test/test_process_snapshot.cc

Index: snapshot/test/test_process_snapshot.cc
diff --git a/snapshot/test/test_process_snapshot.cc b/snapshot/test/test_process_snapshot.cc
index 13d18e34291cc75615fffd04a777eedd5337785e..8785da659791cdd8e0ef8c47ce1e560b97204f72 100644
--- a/snapshot/test/test_process_snapshot.cc
+++ b/snapshot/test/test_process_snapshot.cc
@@ -26,6 +26,7 @@ TestProcessSnapshot::TestProcessSnapshot()
       process_start_time_(),
       process_cpu_user_time_(),
       process_cpu_system_time_(),
+      client_id_(),
       annotations_simple_map_(),
       system_(),
       threads_(),
@@ -58,6 +59,10 @@ void TestProcessSnapshot::ProcessCPUTimes(timeval* user_time,
   *system_time = process_cpu_system_time_;
 }
 
+void TestProcessSnapshot::ClientID(UUID* client_id) const {
+  *client_id = client_id_;
+}
+
 const std::map<std::string, std::string>&
 TestProcessSnapshot::AnnotationsSimpleMap() const {
   return annotations_simple_map_;