DOMStorageContextImpl that's implemented in terms of the new dom_storage classes.

content/browser/in_process_webkit/dom_storage_context_impl.cc

Index: content/browser/in_process_webkit/dom_storage_context_impl.cc
===================================================================
--- content/browser/in_process_webkit/dom_storage_context_impl.cc	(revision 127292)
+++ content/browser/in_process_webkit/dom_storage_context_impl.cc	(working copy)
@@ -198,6 +198,13 @@
 }
 
 void DOMStorageContextImpl::PurgeMemory() {
+  if (!webkit_message_loop_->RunsTasksOnCurrentThread()) {
+    webkit_message_loop_->PostTask(
+        FROM_HERE,
+        base::Bind(&DOMStorageContextImpl::PurgeMemory, this));
+    return;
+  }
+
   // It is only safe to purge the memory from the LocalStorage namespace,
   // because it is backed by disk and can be reloaded later.  If we purge a
   // SessionStorage namespace, its data will be gone forever, because it isn't
@@ -277,6 +284,28 @@
   }
 }
 
+void DOMStorageContextImpl::SetClearLocalState(bool clear_local_state) {
+  if (!webkit_message_loop_->RunsTasksOnCurrentThread()) {
+    webkit_message_loop_->PostTask(
+        FROM_HERE,
+        base::Bind(
+            &DOMStorageContextImpl::SetClearLocalState,
+            this, clear_local_state));
+    return;
+  }
+  clear_local_state_on_exit_ = clear_local_state;
+}
+
+void DOMStorageContextImpl::SaveSessionState() {
+  if (!webkit_message_loop_->RunsTasksOnCurrentThread()) {
+    webkit_message_loop_->PostTask(
+        FROM_HERE,
+        base::Bind(&DOMStorageContextImpl::SaveSessionState, this));
+    return;
+  }
+  save_session_state_ = true;
+}
+
 DOMStorageNamespace* DOMStorageContextImpl::CreateLocalStorage() {
   FilePath dir_path;
   if (!data_path_.empty())
@@ -316,6 +345,7 @@
 void DOMStorageContextImpl::GetAllStorageFiles(
     const GetAllStorageFilesCallback& callback) {
   if (!webkit_message_loop_->RunsTasksOnCurrentThread()) {
+    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     webkit_message_loop_->PostTask(
         FROM_HERE,
         base::Bind(
@@ -352,4 +382,3 @@
 }
 
 #endif  // ENABLE_NEW_DOM_STORAGE_BACKEND
-