memory-infra: skip IndexedDB file name in BACKGROUND dumps

content/browser/indexed_db/leveldb/leveldb_database.cc

Index: content/browser/indexed_db/leveldb/leveldb_database.cc
diff --git a/content/browser/indexed_db/leveldb/leveldb_database.cc b/content/browser/indexed_db/leveldb/leveldb_database.cc
index f157f5ef29d708506f8e6f00677732f1f23d56d3..ca777c7614115c9b938e3fd00ad537ae2d713960 100644
--- a/content/browser/indexed_db/leveldb/leveldb_database.cc
+++ b/content/browser/indexed_db/leveldb/leveldb_database.cc
@@ -481,6 +481,14 @@ bool LevelDBDatabase::OnMemoryDump(
       "leveldb/index_db/0x%" PRIXPTR, reinterpret_cast<uintptr_t>(db_.get())));
   dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
                   base::trace_event::MemoryAllocatorDump::kUnitsBytes, size);
+
+  // Dumps in BACKGROUND mode cannot have strings or edges in order to minimize
+  // trace size and instrumentation overhead.
+  if (args.level_of_detail ==
+      base::trace_event::MemoryDumpLevelOfDetail::BACKGROUND) {
+    return true;
+  }
+
   dump->AddString("file_name", "", file_name_for_tracing);
 
   // Memory is allocated from system allocator (malloc).