Implement a proxy for URL util. Some of the implementation that doesn't need ...

webkit/plugins/ppapi/ppb_audio_impl.cc

 // Copyright (c) 2010 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_impl.h"
 
 #include "base/logging.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/c/ppb_audio_config.h"
@@ skipping 202 matching lines @@
 // PPB_Audio_Impl --------------------------------------------------------------
 
 PPB_Audio_Impl::PPB_Audio_Impl(PluginInstance* instance)
     : Resource(instance),
       audio_(NULL),
       create_callback_pending_(false) {
   create_callback_ = PP_MakeCompletionCallback(NULL, NULL);
 }
 
 PPB_Audio_Impl::~PPB_Audio_Impl() {
-  // Calling ShutDown() makes sure StreamCreated cannot be called anymore.
+  // Calling ShutDown() makes sure StreamCreated cannot be called anymore and
+  // releases the audio data associated with the pointer. Note however, that
+  // until ShutDown returns, StreamCreated may still be called. This will be
+  // OK since we'll just immediately clean up the data it stored later in this
+  // destructor.
   if (audio_) {
     audio_->ShutDown();
     audio_ = NULL;
   }
 
   // If the completion callback hasn't fired yet, do so here
   // with an error condition.
   if (create_callback_pending_) {
     PP_RunCompletionCallback(&create_callback_, PP_ERROR_ABORTED);
     create_callback_pending_ = false;
@@ skipping 129 matching lines @@
     // the I/O thread and back, but this extra complexity doesn't seem worth it
     // just to clean up these handles faster.
   } else {
     SetStreamInfo(shared_memory_handle, shared_memory_size, socket_handle);
   }
 }
 
 }  // namespace ppapi
 }  // namespace webkit