perfetto: rename descriptor -> ds_descriptor in tracing service

This avoids conflicts with the descriptor() autogenerated field
when generating proto full protos on server side.

Change-Id: I6a06f003fb2f109db215ac4de114ae37fa284e1d
diff --git a/src/tracing/core/tracing_service_impl_unittest.cc b/src/tracing/core/tracing_service_impl_unittest.cc
index d8015cd..24e2988 100644
--- a/src/tracing/core/tracing_service_impl_unittest.cc
+++ b/src/tracing/core/tracing_service_impl_unittest.cc
@@ -2785,16 +2785,16 @@
   EXPECT_EQ(svc_state.data_sources_size(), 4);
 
   EXPECT_EQ(svc_state.data_sources().at(0).producer_id(), 1);
-  EXPECT_EQ(svc_state.data_sources().at(0).descriptor().name(), "common_ds");
+  EXPECT_EQ(svc_state.data_sources().at(0).ds_descriptor().name(), "common_ds");
 
   EXPECT_EQ(svc_state.data_sources().at(1).producer_id(), 2);
-  EXPECT_EQ(svc_state.data_sources().at(1).descriptor().name(), "common_ds");
+  EXPECT_EQ(svc_state.data_sources().at(1).ds_descriptor().name(), "common_ds");
 
   EXPECT_EQ(svc_state.data_sources().at(2).producer_id(), 1);
-  EXPECT_EQ(svc_state.data_sources().at(2).descriptor().name(), "p1_ds");
+  EXPECT_EQ(svc_state.data_sources().at(2).ds_descriptor().name(), "p1_ds");
 
   EXPECT_EQ(svc_state.data_sources().at(3).producer_id(), 2);
-  EXPECT_EQ(svc_state.data_sources().at(3).descriptor().name(), "p2_ds");
+  EXPECT_EQ(svc_state.data_sources().at(3).ds_descriptor().name(), "p2_ds");
 
   // Test that descriptors are cleared when a producer disconnects.
   producer1.reset();
@@ -2804,9 +2804,9 @@
   EXPECT_EQ(svc_state.data_sources_size(), 2);
 
   EXPECT_EQ(svc_state.data_sources().at(0).producer_id(), 2);
-  EXPECT_EQ(svc_state.data_sources().at(0).descriptor().name(), "common_ds");
+  EXPECT_EQ(svc_state.data_sources().at(0).ds_descriptor().name(), "common_ds");
   EXPECT_EQ(svc_state.data_sources().at(1).producer_id(), 2);
-  EXPECT_EQ(svc_state.data_sources().at(1).descriptor().name(), "p2_ds");
+  EXPECT_EQ(svc_state.data_sources().at(1).ds_descriptor().name(), "p2_ds");
 }
 
 }  // namespace perfetto