Dispatch IndexedDB IPC messages to worker threads

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index 55d07f668cc83f5e57d58a5875c58ab17ea54287..f4ffbe47c8f5dd09ca75da7beb5213b9e1f3ddfa 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -18,6 +18,7 @@
 #include "content/common/view_messages.h"
 #include "content/common/webblobregistry_impl.h"
 #include "content/common/webmessageportchannel_impl.h"
+#include "content/common/worker_task_runner.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/gamepad_shared_memory_reader.h"
@@ -642,3 +643,19 @@ void RendererWebKitPlatformSupportImpl::GetPlugins(
   RenderThreadImpl::current()->Send(
       new ViewHostMsg_GetPlugins(refresh, plugins));
 }
+
+void RendererWebKitPlatformSupportImpl::didStartWorkerRunLoop(
+    const WebKit::WebWorkerRunLoop& runLoop) {
+  DCHECK(ChildThread::current());
+  WorkerTaskRunner* worker_tracker =
+      ChildThread::current()->worker_task_runner();
+  worker_tracker->RegisterCurrentWorkerLoop(runLoop);
+}
+
+void RendererWebKitPlatformSupportImpl::didStopWorkerRunLoop(
+    const WebKit::WebWorkerRunLoop& runLoop) {
+  DCHECK(ChildThread::current());
+  WorkerTaskRunner* worker_tracker =
+      ChildThread::current()->worker_task_runner();
+  worker_tracker->UnRegisterCurrentWorkerLoop(runLoop);
+}