Add LevelDB database names to tracing path for easier debugging

components/leveldb_proto/leveldb_database.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/leveldb_proto/leveldb_database.h"
 
 #include <inttypes.h>
 
 #include <string>
 #include <vector>
@@ skipping 169 matching lines @@
   if (!db_)
     return false;
 
   std::string value;
   uint64_t size;
   bool res = db_->GetProperty("leveldb.approximate-memory-usage", &value);
   DCHECK(res);
   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 =
       base::trace_event::MemoryDumpManager::GetInstance()
           ->system_allocator_pool_name();
   if (system_allocator_pool_name)
     pmd->AddSuballocation(dump->guid(), system_allocator_pool_name);
 
   return true;
 }
 
 }  // namespace leveldb_proto