Replace Closure in TaskRunner::PostTask with OneShotCallback

content/renderer/categorized_worker_pool.h

Index: content/renderer/categorized_worker_pool.h
diff --git a/content/renderer/categorized_worker_pool.h b/content/renderer/categorized_worker_pool.h
index 2f75f2183f24d0c145e55697f53c86470f371837..09a48261ce774449cf9e0f0696b7e3d746190955 100644
--- a/content/renderer/categorized_worker_pool.h
+++ b/content/renderer/categorized_worker_pool.h
@@ -36,7 +36,7 @@ class CONTENT_EXPORT CategorizedWorkerPool : public base::TaskRunner,
 
   // Overridden from base::TaskRunner:
   bool PostDelayedTask(const tracked_objects::Location& from_here,
-                       const base::Closure& task,
+                       base::OnceClosure task,
                        base::TimeDelta delay) override;
   bool RunsTasksOnCurrentThread() const override;
 
@@ -81,7 +81,7 @@ class CONTENT_EXPORT CategorizedWorkerPool : public base::TaskRunner,
   // |task_graph_runner_|.
   class ClosureTask : public cc::Task {
    public:
-    explicit ClosureTask(const base::Closure& closure);
+    explicit ClosureTask(base::OnceClosure closure);
 
     // Overridden from cc::Task:
     void RunOnWorkerThread() override;
@@ -90,7 +90,7 @@ class CONTENT_EXPORT CategorizedWorkerPool : public base::TaskRunner,
     ~ClosureTask() override;
 
    private:
-    base::Closure closure_;
+    base::OnceClosure closure_;
 
     DISALLOW_COPY_AND_ASSIGN(ClosureTask);
   };