[tracing] Add IndexDB database memory usages to tracing

content/browser/indexed_db/indexed_db_backing_store.cc

 // Copyright (c) 2013 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 "content/browser/indexed_db/indexed_db_backing_store.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/format_macros.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/trace_event/memory_dump_manager.h"
 #include "build/build_config.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/indexed_db/indexed_db_blob_info.h"
 #include "content/browser/indexed_db/indexed_db_class_factory.h"
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_leveldb_coding.h"
 #include "content/browser/indexed_db/indexed_db_metadata.h"
 #include "content/browser/indexed_db/indexed_db_tracing.h"
 #include "content/browser/indexed_db/indexed_db_value.h"
 #include "content/browser/indexed_db/leveldb/leveldb_comparator.h"
@@ skipping 1067 matching lines @@
       DCHECK(!db);
       LOG(ERROR) << "IndexedDB backing store reopen after recovery failed";
       HistogramOpenStatus(INDEXED_DB_BACKING_STORE_OPEN_CLEANUP_REOPEN_FAILED,
                           origin_url);
       return scoped_refptr<IndexedDBBackingStore>();
     }
     HistogramOpenStatus(INDEXED_DB_BACKING_STORE_OPEN_CLEANUP_REOPEN_SUCCESS,
                         origin_url);
   }
 
+  base::trace_event::MemoryDumpManager::GetInstance()
+      ->RegisterDumpProviderWithSequencedTaskRunner(
+          db.get(), "IndexedDBBackingStore", task_runner,
+          base::trace_event::MemoryDumpProvider::Options());
+
   scoped_refptr<IndexedDBBackingStore> backing_store =
       Create(indexed_db_factory, origin_url, blob_path, request_context,
              std::move(db), std::move(comparator), task_runner, status);
 
   if (clean_journal && backing_store.get()) {
     *status = backing_store->CleanUpBlobJournal(LiveBlobJournalKey::Encode());
     if (!status->ok()) {
       HistogramOpenStatus(
           INDEXED_DB_BACKING_STORE_OPEN_FAILED_CLEANUP_JOURNAL_ERROR,
           origin_url);
@@ skipping 24 matching lines @@
   scoped_ptr<LevelDBComparator> comparator(new Comparator());
   scoped_ptr<LevelDBDatabase> db =
       LevelDBDatabase::OpenInMemory(comparator.get());
   if (!db) {
     LOG(ERROR) << "LevelDBDatabase::OpenInMemory failed.";
     HistogramOpenStatus(INDEXED_DB_BACKING_STORE_OPEN_MEMORY_FAILED,
                         origin_url);
     return scoped_refptr<IndexedDBBackingStore>();
   }
   HistogramOpenStatus(INDEXED_DB_BACKING_STORE_OPEN_MEMORY_SUCCESS, origin_url);
+  base::trace_event::MemoryDumpManager::GetInstance()
+      ->RegisterDumpProviderWithSequencedTaskRunner(
+          db.get(), "IndexedDBBackingStore", task_runner,
+          base::trace_event::MemoryDumpProvider::Options());
 
   return Create(NULL /* indexed_db_factory */, origin_url, base::FilePath(),
                 NULL /* request_context */, std::move(db),
                 std::move(comparator), task_runner, status);
 }
 
 // static
 scoped_refptr<IndexedDBBackingStore> IndexedDBBackingStore::Create(
     IndexedDBFactory* indexed_db_factory,
     const GURL& origin_url,
@@ skipping 3323 matching lines @@
 
 IndexedDBBackingStore::Transaction::WriteDescriptor::WriteDescriptor(
     const WriteDescriptor& other) = default;
 IndexedDBBackingStore::Transaction::WriteDescriptor::~WriteDescriptor() =
     default;
 IndexedDBBackingStore::Transaction::WriteDescriptor&
     IndexedDBBackingStore::Transaction::WriteDescriptor::
     operator=(const WriteDescriptor& other) = default;
 
 }  // namespace content