Added volume adjust sound behind the flag.

media/audio/sounds/test_data.cc

 // Copyright 2013 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.
 
 #include "media/audio/sounds/test_data.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 
 namespace media {
 
 TestObserver::TestObserver(const base::Closure& quit)
     : loop_(base::MessageLoop::current()),
       quit_(quit),
       num_play_requests_(0),
+      num_replays_(0),
       num_stop_requests_(0),
       cursor_(0) {
   DCHECK(loop_);
 }
 
-TestObserver::~TestObserver() {
-}
+TestObserver::~TestObserver() {}
 
 void TestObserver::OnPlay() {
   ++num_play_requests_;
 }
 
+void TestObserver::OnReplay() {
+  ++num_replays_;
+}
+
 void TestObserver::OnStop(size_t cursor) {
   ++num_stop_requests_;
   cursor_ = cursor;
   loop_->PostTask(FROM_HERE, quit_);
 }
 
 }  // namespace media