Patch the results of queries that return object IDs in the passthrough cmd decoder.

gpu/command_buffer/service/client_service_map.h

Index: gpu/command_buffer/service/client_service_map.h
diff --git a/gpu/command_buffer/service/client_service_map.h b/gpu/command_buffer/service/client_service_map.h
index b28f1f7b48677b6664152e602ea120b2f6daaf7d..904a0951716e8ccd0bf5c3c96f1864b6a10abfd5 100644
--- a/gpu/command_buffer/service/client_service_map.h
+++ b/gpu/command_buffer/service/client_service_map.h
@@ -54,6 +54,24 @@ class ClientServiceMap {
     return invalid_service_id();
   }
 
+  bool GetClientID(ServiceType service_id, ClientType* client_id) const {
+    if (service_id == 0) {
+      if (client_id) {
+        *client_id = 0;
+      }
+      return true;
+    }
+    for (auto mapping : client_to_service_) {
+      if (mapping.second == service_id) {
+        if (client_id) {
+          *client_id = mapping.first;
+        }
+        return true;
+      }
+    }
+    return false;
+  }
+
   ServiceType invalid_service_id() const {
     return std::numeric_limits<ServiceType>::max();
   }