Add LevelDB database names to tracing path for easier debugging

components/leveldb_proto/leveldb_database.cc

Index: components/leveldb_proto/leveldb_database.cc
diff --git a/components/leveldb_proto/leveldb_database.cc b/components/leveldb_proto/leveldb_database.cc
index 5769710cb170a517364e92289b4e9aa701092aea..753e4cb91156e1ae7205410c28f931880bb8acc4 100644
--- a/components/leveldb_proto/leveldb_database.cc
+++ b/components/leveldb_proto/leveldb_database.cc
@@ -187,16 +187,14 @@ bool LevelDB::OnMemoryDump(const base::trace_event::MemoryDumpArgs& dump_args,
   res = base::StringToUint64(value, &size);
   DCHECK(res);
 
+  std::string dump_name = "leveldb/leveldb_proto";
+  if (!client_name_.empty())
+    dump_name += "/" + client_name_;
   base::trace_event::MemoryAllocatorDump* dump = pmd->CreateAllocatorDump(
-      base::StringPrintf("leveldb/leveldb_proto/0x%" PRIXPTR,
+      base::StringPrintf("%s/0x%" PRIXPTR, dump_name.c_str(),
                          reinterpret_cast<uintptr_t>(db_.get())));
   dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
                   base::trace_event::MemoryAllocatorDump::kUnitsBytes, size);
-  if (!client_name_.empty() &&
-      dump_args.level_of_detail !=
-          base::trace_event::MemoryDumpLevelOfDetail::BACKGROUND) {
-    dump->AddString("client_name", "", client_name_);
-  }
 
   // Memory is allocated from system allocator (malloc).
   const char* system_allocator_pool_name =