[tracing] Show the local storage databases under dom_storage

content/browser/dom_storage/dom_storage_database.cc

Index: content/browser/dom_storage/dom_storage_database.cc
diff --git a/content/browser/dom_storage/dom_storage_database.cc b/content/browser/dom_storage/dom_storage_database.cc
index d11aad76540c65aa77527f1bf741c172943aa7ad..30908be1fe7b516a4c52a72a6e21feee6bc8c529 100644
--- a/content/browser/dom_storage/dom_storage_database.cc
+++ b/content/browser/dom_storage/dom_storage_database.cc
@@ -135,6 +135,12 @@ bool DOMStorageDatabase::CommitChanges(bool clear_all_first,
   return success;
 }
 
+void DOMStorageDatabase::ReportMemoryUsage(
+    base::trace_event::ProcessMemoryDump* pmd,
+    const std::string& name) {

[michaeln, 2016/12/05 22:42:53]

i think you need to check IsOpen() here

[ssid, 2016/12/08 18:09:47]

Done.

+  db_->ReportMemoryUsage(pmd, name);
+}
+
 bool DOMStorageDatabase::LazyOpen(bool create_if_needed) {
   if (failed_to_open_) {
     // Don't try to open a database that we know has failed