[tracing] Add names to memory-infra dumpers for debugging

components/tracing/child_trace_message_filter_browsertest.cc

Index: components/tracing/child_trace_message_filter_browsertest.cc
diff --git a/components/tracing/child_trace_message_filter_browsertest.cc b/components/tracing/child_trace_message_filter_browsertest.cc
index 6dec6a372a3ec577b71dc08c697fd624061021b4..0c62d7c76592c5b67e0cfd2a392f8eb67e5928b0 100644
--- a/components/tracing/child_trace_message_filter_browsertest.cc
+++ b/components/tracing/child_trace_message_filter_browsertest.cc
@@ -50,7 +50,7 @@ class ChildTracingTest : public content::RenderViewTest {
     // registered itself by now; this cannot be prevented easily.
     mock_dump_provider_.reset(new MockDumpProvider());
     MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-        mock_dump_provider_.get());
+        mock_dump_provider_.get(), "MockDumpProvider");
     MemoryDumpManager::GetInstance()
         ->set_dumper_registrations_ignored_for_testing(true);