Port IndexedDB open() and database callbacks to Mojo.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 231e10b44f1916751e021d182e16a07690a7a8c1..e6b83d460487bf7ddb050a68ee6c774da56287c7 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -75,6 +75,7 @@
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/gpu/shader_disk_cache.h"
 #include "content/browser/histogram_message_filter.h"
+#include "content/browser/indexed_db/database_factory_impl.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
 #include "content/browser/loader/resource_message_filter.h"
@@ -1094,10 +1095,16 @@ void RenderProcessHostImpl::CreateMessageFilters() {
   AddFilter(new ClipboardMessageFilter(blob_storage_context));
   AddFilter(new DOMStorageMessageFilter(
       storage_partition_impl_->GetDOMStorageContext()));
-  AddFilter(new IndexedDBDispatcherHost(
+
+  idb_dispatcher_host_ = new IndexedDBDispatcherHost(
       GetID(), storage_partition_impl_->GetURLRequestContext(),
       storage_partition_impl_->GetIndexedDBContext(),
-      blob_storage_context.get()));
+      blob_storage_context.get());
+  idb_database_factory_.reset(
+      new DatabaseFactoryImpl(storage_partition_impl_->GetURLRequestContext(),
+                              storage_partition_impl_->GetIndexedDBContext(),
+                              GetID(), idb_dispatcher_host_));
+  AddFilter(idb_dispatcher_host_.get());
 
 #if defined(ENABLE_WEBRTC)
   peer_connection_tracker_host_ = new PeerConnectionTrackerHost(