Move blink scheduler implementation into a component

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 effb4f9d0c55869b53f300f7407d7c101122a50f..5cd7433021adb3aedb8dffa6adaa6d926a089f9d 100644
--- a/content/child/threaded_data_provider.h
+++ b/content/child/threaded_data_provider.h
@@ -24,9 +24,12 @@ namespace IPC {
 class SyncChannel;
 }
 
+namespace scheduler {
+class WebThreadImplForWorkerScheduler;
+}
+
 namespace content {
 class ResourceDispatcher;
-class WebThreadImplForWorkerScheduler;
 
 class ThreadedDataProvider {
  public:
@@ -78,7 +81,7 @@ class ThreadedDataProvider {
   int shm_size_;
   scoped_ptr<base::WeakPtrFactory<ThreadedDataProvider> >
       background_thread_weak_factory_;
-  WebThreadImplForWorkerScheduler& background_thread_;
+  scheduler::WebThreadImplForWorkerScheduler& background_thread_;
   IPC::SyncChannel* ipc_channel_;
   blink::WebThreadedDataReceiver* threaded_data_receiver_;
   bool resource_filter_active_;