Introduce a SchedulerHelper in content/child/scheduler

content/renderer/scheduler/renderer_scheduler.cc

Index: content/renderer/scheduler/renderer_scheduler.cc
diff --git a/content/renderer/scheduler/renderer_scheduler.cc b/content/renderer/scheduler/renderer_scheduler.cc
index 2ccddf3254ee27b8110cb832acfbd96897b811ad..ef92635246de834b2cc00da2650e71fe558ab0ec 100644
--- a/content/renderer/scheduler/renderer_scheduler.cc
+++ b/content/renderer/scheduler/renderer_scheduler.cc
@@ -6,10 +6,10 @@
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
+#include "content/child/scheduler/scheduler_message_loop_delegate.h"
 #include "content/public/common/content_switches.h"
 #include "content/renderer/scheduler/null_renderer_scheduler.h"
 #include "content/renderer/scheduler/renderer_scheduler_impl.h"
-#include "content/renderer/scheduler/renderer_scheduler_message_loop_delegate.h"
 
 namespace content {
 
@@ -27,7 +27,7 @@ scoped_ptr<RendererScheduler> RendererScheduler::Create() {
   } else {
     base::MessageLoop* message_loop = base::MessageLoop::current();
     return make_scoped_ptr(new RendererSchedulerImpl(
-        RendererSchedulerMessageLoopDelegate::Create(message_loop)));
+        SchedulerMessageLoopDelegate::Create(message_loop)));
   }
 }