Add a WorkerScheduler and a WebThreadImplForWorker

content/child/threaded_data_provider.h

Index: content/child/threaded_data_provider.h
diff --git a/content/child/threaded_data_provider.h b/content/child/threaded_data_provider.h
index 9ac2ac21037debcb3612bd5053b6c564ca64f134..404338fd8b36f562c0349114cefece08ba741eb6 100644
--- a/content/child/threaded_data_provider.h
+++ b/content/child/threaded_data_provider.h
@@ -26,7 +26,7 @@ class SyncChannel;
 
 namespace content {
 class ResourceDispatcher;
-class WebThreadImpl;
+class WebThreadImplForWorker;
 
 class ThreadedDataProvider {
  public:
@@ -78,7 +78,7 @@ class ThreadedDataProvider {
   int shm_size_;
   scoped_ptr<base::WeakPtrFactory<ThreadedDataProvider> >
       background_thread_weak_factory_;
-  WebThreadImpl& background_thread_;
+  WebThreadImplForWorker& background_thread_;

[Sami, 2015/04/02 10:19:46]

Not your fault, but I think this should be a pointer according to the style
guide. Feel free to leave as is if it's too difficult to change.

However, should the type be just blink::WebThread if this class isn't calling
any of the subclass methods?

[alex clarke (OOO till 29th), 2015/04/02 15:19:28]

Yes strictly speaking that is true.  I'd prefer to leave it alone though.

   IPC::SyncChannel* ipc_channel_;
   blink::WebThreadedDataReceiver* threaded_data_receiver_;
   bool resource_filter_active_;