Clear PostTaskAndReply task on the destination thread (3)

ios/web/public/web_thread.h

Index: ios/web/public/web_thread.h
diff --git a/ios/web/public/web_thread.h b/ios/web/public/web_thread.h
index 56cbb213d7a03e1d52883e40b1f44395e4be0abd..594be47ac6c2302d0b226cc7b8ce8228d2ed6db4 100644
--- a/ios/web/public/web_thread.h
+++ b/ios/web/public/web_thread.h
@@ -116,19 +116,19 @@ class WebThread {
 
   static bool PostTaskAndReply(ID identifier,
                                const tracked_objects::Location& from_here,
-                               const base::Closure& task,
-                               const base::Closure& reply);
+                               base::Closure task,
+                               base::Closure reply);
 
   template <typename ReturnType, typename ReplyArgType>
   static bool PostTaskAndReplyWithResult(
       ID identifier,
       const tracked_objects::Location& from_here,
-      const base::Callback<ReturnType(void)>& task,
-      const base::Callback<void(ReplyArgType)>& reply) {
+      base::Callback<ReturnType()> task,
+      base::Callback<void(ReplyArgType)> reply) {
     scoped_refptr<base::SingleThreadTaskRunner> task_runner =
         GetTaskRunnerForThread(identifier);
-    return base::PostTaskAndReplyWithResult(task_runner.get(), from_here, task,
-                                            reply);
+    return base::PostTaskAndReplyWithResult(task_runner.get(), from_here,
+                                            std::move(task), std::move(reply));
   }
 
   template <class T>
@@ -163,8 +163,8 @@ class WebThread {
                                    const base::Closure& task);
   static bool PostBlockingPoolTaskAndReply(
       const tracked_objects::Location& from_here,
-      const base::Closure& task,
-      const base::Closure& reply);
+      base::Closure task,
+      base::Closure reply);
   static bool PostBlockingPoolSequencedTask(
       const std::string& sequence_token_name,
       const tracked_objects::Location& from_here,