DomStorage async IPC message definitions and browser-side handlers. These messages aren't called ye…

webkit/dom_storage/dom_storage_area.cc

Index: webkit/dom_storage/dom_storage_area.cc
===================================================================
--- webkit/dom_storage/dom_storage_area.cc	(revision 133033)
+++ webkit/dom_storage/dom_storage_area.cc	(working copy)
@@ -71,6 +71,16 @@
 DomStorageArea::~DomStorageArea() {
 }
 
+void DomStorageArea::ExtractValues(ValuesMap* map) {
+  if (is_shutdown_)
+    return;
+  InitialImportIfNeeded();
+  ValuesMap current_values;
+  map_->SwapValues(&current_values);

[ericu, 2012/04/20 23:36:00]

As discussed, SwapValues leads to too much accounting overhead.  Add a copy
method to DomStorageMap to avoid that and make this code much easier to read.

[michaeln, 2012/04/20 23:42:19]

Yup, done.

+  *map = current_values;
+  map_->SwapValues(&current_values);
+}
+
 unsigned DomStorageArea::Length() {
   if (is_shutdown_)
     return 0;