Fix compilation issue

Author: tli2

src/common/dedicated_thread_registry.cpp

@@ -11,6 +11,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "common/dedicated_thread_registry.h"
+#include "common/dedicated_thread_task.h"
+#include "common/dedicated_thread_owner.h
 
 namespace peloton {
 

src/include/common/dedicated_thread_registry.h

@@ -16,11 +16,12 @@
 #include <vector>
 #include <thread>
 #include "common/macros.h"
-#include "common/dedicated_thread_task.h"
+
 
 namespace peloton {
 
 class DedicatedThreadOwner;
+class DedicatedThreadTask;
 /**
  * Singleton class responsible for maintaining and dispensing long running
  * (dedicated) threads to other system components. The class also serves