Expose PostTaskAndReplyWithResult in BrowserThread

content/public/browser/browser_thread.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
+#include "base/task_runner_util.h"
 #include "base/time.h"
 #include "content/common/content_export.h"
 
 #if defined(UNIT_TEST)
 #include "base/logging.h"
 #endif  // UNIT_TEST
 
 class MessageLoop;
 
 namespace base {
@@ skipping 102 matching lines @@
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       base::TimeDelta delay);
 
   static bool PostTaskAndReply(
       ID identifier,
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       const base::Closure& reply);
 
+  template <typename ReturnType>
+  static bool PostTaskAndReplyWithResult(
+      ID identifier,
+      const tracked_objects::Location& from_here,
+      const base::Callback<ReturnType(void)>& task,
+      const base::Callback<void(ReturnType)>& reply) {
+    scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+        GetMessageLoopProxyForThread(identifier);
+    return base::PostTaskAndReplyWithResult<ReturnType>(
+        message_loop_proxy.get(), from_here, task, reply);
+  }
+
   template <class T>
   static bool DeleteSoon(ID identifier,
                          const tracked_objects::Location& from_here,
                          const T* object) {
     return GetMessageLoopProxyForThread(identifier)->DeleteSoon(
         from_here, object);
   }
 
   template <class T>
   static bool ReleaseSoon(ID identifier,
@@ skipping 123 matching lines @@
  private:
   friend class BrowserThreadImpl;
 
   BrowserThread() {}
   DISALLOW_COPY_AND_ASSIGN(BrowserThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_