PPAPI: Get TrackedCallback ready for running on non-main threads.

webkit/plugins/ppapi/audio_helper.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 "ppapi/c/pp_completion_callback.h"
 #include "webkit/plugins/ppapi/audio_helper.h"
 #include "webkit/plugins/ppapi/common.h"
 #include "webkit/plugins/ppapi/resource_helper.h"
 
 using ppapi::TrackedCallback;
@@ skipping 45 matching lines @@
     base::SyncSocket::Handle socket_handle) {
   if (TrackedCallback::IsPending(create_callback_)) {
     // Trusted side of proxy can specify a callback to recieve handles. In
     // this case we don't need to map any data or start the thread since it
     // will be handled by the proxy.
     shared_memory_for_create_callback_.reset(
         new base::SharedMemory(shared_memory_handle, false));
     shared_memory_size_for_create_callback_ = shared_memory_size;
     socket_for_create_callback_.reset(new base::SyncSocket(socket_handle));
 
-    ::ppapi::TrackedCallback::ClearAndRun(&create_callback_, PP_OK);
+    create_callback_->Run(PP_OK);
 
     // It might be nice to close the handles here to free up some system
     // resources, but we can't since there's a race condition. The handles must
     // be valid until they're sent over IPC, which is done from the I/O thread
     // which will often get done after this code executes. We could do
     // something more elaborate like an ACK from the plugin or post a task to
     // the I/O thread and back, but this extra complexity doesn't seem worth it
     // just to clean up these handles faster.
   } else {
     OnSetStreamInfo(shared_memory_handle, shared_memory_size, socket_handle);
   }
 }
 
 void AudioHelper::SetCreateCallback(
     scoped_refptr< ::ppapi::TrackedCallback> create_callback) {
   DCHECK(!TrackedCallback::IsPending(create_callback_));
   create_callback_ = create_callback;
 }
 
 }  // namespace ppapi
 }  // namespace webkit