base: Refactor PendingTask out of MessageLoop.

base/threading/worker_pool_win.cc

Index: base/threading/worker_pool_win.cc
diff --git a/base/threading/worker_pool_win.cc b/base/threading/worker_pool_win.cc
index 944447633f1f0ec1ddd5848740c63ba6f0e6a39b..796ac5269f598eb9d36a231a117b8f73fa511708 100644
--- a/base/threading/worker_pool_win.cc
+++ b/base/threading/worker_pool_win.cc
@@ -7,6 +7,7 @@
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
+#include "base/pending_task.h"
 #include "base/task.h"
 #include "base/tracked_objects.h"
 
@@ -14,29 +15,6 @@ namespace base {
 
 namespace {
 
-struct PendingTask {
-  PendingTask(
-      const tracked_objects::Location& posted_from,
-      const base::Closure& task)
-      : posted_from(posted_from),
-        task(task) {
-    birth_tally = tracked_objects::ThreadData::TallyABirthIfActive(posted_from);
-    time_posted = tracked_objects::ThreadData::Now();
-  }
-
-  // Counter for location where the Closure was posted from.
-  tracked_objects::Births* birth_tally;
-
-  // Time the task was posted.
-  tracked_objects::TrackedTime time_posted;
-
-  // The site this PendingTask was posted from.
-  tracked_objects::Location posted_from;
-
-  // The task to run.
-  base::Closure task;
-};
-
 DWORD CALLBACK WorkItemCallback(void* param) {
   PendingTask* pending_task = static_cast<PendingTask*>(param);
   UNSHIPPED_TRACE_EVENT2("task", "WorkItemCallback::Run",