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

base/trace_event/trace_log.cc

Index: base/trace_event/trace_log.cc
diff --git a/base/trace_event/trace_log.cc b/base/trace_event/trace_log.cc
index d1fb70e18eefc5c06d144ef3b0b1bfe0e11cdbab..a2920d3d91d28297168ed337ccbd6fc2b3dda12b 100644
--- a/base/trace_event/trace_log.cc
+++ b/base/trace_event/trace_log.cc
@@ -260,7 +260,7 @@ TraceLog::ThreadLocalEventBuffer::ThreadLocalEventBuffer(TraceLog* trace_log)
 
   // This is to report the local memory usage when memory-infra is enabled.
   MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-      this, ThreadTaskRunnerHandle::Get());
+      this, "ThreadLocalEventBuffer", ThreadTaskRunnerHandle::Get());
 
   AutoLock lock(trace_log->lock_);
   trace_log->thread_message_loops_.insert(message_loop);
@@ -395,7 +395,7 @@ TraceLog::TraceLog()
 
   logged_events_.reset(CreateTraceBuffer());
 
-  MemoryDumpManager::GetInstance()->RegisterDumpProvider(this);
+  MemoryDumpManager::GetInstance()->RegisterDumpProvider(this, "TraceLog");
 }
 
 TraceLog::~TraceLog() {}