Dispatch IndexedDB IPC messages to worker threads

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 50f010a7531975500f5ea51ea08351ed0223d070..e6a1cef156816b56d86cb305e5ff2498d476fcd7 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -205,7 +205,6 @@ void RenderThreadImpl::Init() {
   task_factory_.reset(new ScopedRunnableMethodFactory<RenderThreadImpl>(this));
 
   appcache_dispatcher_.reset(new AppCacheDispatcher(Get()));
-  indexed_db_dispatcher_.reset(new IndexedDBDispatcher());
 
   db_message_filter_ = new DBMessageFilter();
   AddFilter(db_message_filter_.get());
@@ -709,8 +708,6 @@ bool RenderThreadImpl::OnControlMessageReceived(const IPC::Message& msg) {
   // Some messages are handled by delegates.
   if (appcache_dispatcher_->OnMessageReceived(msg))
     return true;
-  if (indexed_db_dispatcher_->OnMessageReceived(msg))
-    return true;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(RenderThreadImpl, msg)