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

sql/connection.cc

 // Copyright (c) 2012 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 "sql/connection.h"
 
 #include <string.h>
 
 #include "base/bind.h"
 #include "base/debug/dump_without_crashing.h"
@@ skipping 337 matching lines @@
       mmap_disabled_(false),
       mmap_enabled_(false),
       total_changes_at_last_release_(0),
       stats_histogram_(NULL),
       commit_time_histogram_(NULL),
       autocommit_time_histogram_(NULL),
       update_time_histogram_(NULL),
       query_time_histogram_(NULL),
       clock_(new TimeSource()) {
   base::trace_event::MemoryDumpManager::GetInstance()->RegisterDumpProvider(
-      this);
+      this, "sql::Connection", nullptr);
 }
 
 Connection::~Connection() {
   base::trace_event::MemoryDumpManager::GetInstance()->UnregisterDumpProvider(
       this);
   Close();
 }
 
 void Connection::RecordEvent(Events event, size_t count) {
   for (size_t i = 0; i < count; ++i) {
@@ skipping 1431 matching lines @@
   ignore_result(Execute(kNoWritableSchema));
 
   return ret;
 }
 
 base::TimeTicks TimeSource::Now() {
   return base::TimeTicks::Now();
 }
 
 }  // namespace sql