Corresponding change in Pepper since EnumerateDevices contract is changed.

webkit/plugins/ppapi/ppb_audio_input_impl.cc

 // 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.
 
 #include "webkit/plugins/ppapi/ppb_audio_input_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/shared_memory.h"
@@ skipping 93 matching lines @@
 
 int32_t PPB_AudioInput_Impl::InternalEnumerateDevices(
     PP_Resource* devices,
     scoped_refptr<TrackedCallback> callback) {
   PluginDelegate* plugin_delegate = ResourceHelper::GetPluginDelegate(this);
   if (!plugin_delegate)
     return PP_ERROR_FAILED;
 
   devices_ = devices;
   enumerate_devices_callback_ = callback;
-  plugin_delegate->EnumerateDevices(
+  enumeration_request_id_ = plugin_delegate->EnumerateDevices(
       PP_DEVICETYPE_DEV_AUDIOCAPTURE,
       base::Bind(&PPB_AudioInput_Impl::EnumerateDevicesCallbackFunc,
                  AsWeakPtr()));
   return PP_OK_COMPLETIONPENDING;
 }
 
+int32_t PPB_AudioInput_Impl::InternalStopEnumerateDevices(
+    PP_Resource* devices) {
+  PluginDelegate* plugin_delegate = ResourceHelper::GetPluginDelegate(this);
+  if (!plugin_delegate)
+    return PP_ERROR_FAILED;
+
+  if (devices_ == devices) {
+    plugin_delegate->StopEnumerateDevices(enumeration_request_id_);
+  }
+  return PP_OK;
+}
+
 int32_t PPB_AudioInput_Impl::InternalOpen(
     const std::string& device_id,
     PP_AudioSampleRate sample_rate,
     uint32_t sample_frame_count,
     scoped_refptr<TrackedCallback> callback) {
   PluginDelegate* plugin_delegate = ResourceHelper::GetPluginDelegate(this);
   if (!plugin_delegate)
     return PP_ERROR_FAILED;
 
   // When the stream is created, we'll get called back on StreamCreated().
@@ skipping 42 matching lines @@
     const DeviceRefDataVector& devices) {
   devices_data_.clear();
   if (succeeded)
     devices_data_ = devices;
 
   OnEnumerateDevicesComplete(succeeded ? PP_OK : PP_ERROR_FAILED, devices);
 }
 
 }  // namespace ppapi
 }  // namespace webkit