[IndexedDB] Adding traces, perf tests

content/browser/indexed_db/indexed_db_callbacks.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 "content/browser/indexed_db/indexed_db_callbacks.h"
 
 #include <algorithm>
 
 #include "base/metrics/histogram.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/fileapi/fileapi_message_filter.h"
 #include "content/browser/indexed_db/indexed_db_blob_info.h"
 #include "content/browser/indexed_db/indexed_db_connection.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/indexed_db/indexed_db_cursor.h"
 #include "content/browser/indexed_db/indexed_db_database_callbacks.h"
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_metadata.h"
 #include "content/browser/indexed_db/indexed_db_return_value.h"
+#include "content/browser/indexed_db/indexed_db_tracing.h"
 #include "content/browser/indexed_db/indexed_db_value.h"
 #include "content/common/indexed_db/indexed_db_constants.h"
 #include "content/common/indexed_db/indexed_db_messages.h"
 #include "storage/browser/blob/blob_storage_context.h"
 #include "storage/browser/blob/shareable_file_reference.h"
 #include "storage/browser/quota/quota_manager.h"
 
 using storage::ShareableFileReference;
 
 namespace content {
@@ skipping 205 matching lines @@
     if (!blob_info.release_callback().is_null())
       shareable_file->AddFinalReleaseCallback(blob_info.release_callback());
   }
   return dispatcher_host->HoldBlobData(blob_info);
 }
 
 static bool CreateAllBlobs(
     const std::vector<IndexedDBBlobInfo>& blob_info,
     std::vector<IndexedDBMsg_BlobOrFileInfo>* blob_or_file_info,
     scoped_refptr<IndexedDBDispatcherHost> dispatcher_host) {
+  IDB_TRACE("IndexedDBCallbacks::CreateAllBlobs");
   DCHECK_EQ(blob_info.size(), blob_or_file_info->size());
   size_t i;
   if (!dispatcher_host->blob_storage_context())
     return false;
   for (i = 0; i < blob_info.size(); ++i) {
     (*blob_or_file_info)[i].uuid =
         CreateBlobData(blob_info[i],
                        dispatcher_host,
                        dispatcher_host->Context()->TaskRunner());
   }
@@ skipping 349 matching lines @@
       ipc_thread_id_, ipc_callbacks_id_));
   dispatcher_host_ = NULL;
 }
 
 void IndexedDBCallbacks::SetConnectionOpenStartTime(
     const base::TimeTicks& start_time) {
   connection_open_start_time_ = start_time;
 }
 
 }  // namespace content