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 e571411555def940f310a1936024f6893408741b..0bbb55c3935636c3f677245a59eea84de5993e5f 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -10,6 +10,7 @@
 #include "base/platform_file.h"
 #include "base/shared_memory.h"
 #include "base/utf_string_conversions.h"
+#include "content/common/child_process.h"
 #include "content/common/database_util.h"
 #include "content/common/file_system/webfilesystem_impl.h"
 #include "content/common/file_utilities_messages.h"
@@ -18,6 +19,7 @@
 #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/gpu/webgraphicscontext3d_command_buffer_impl.h"
@@ -631,3 +633,19 @@ 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);
+}