Make DefaultDeleter for Video{De|En}codeAccelerator

content/renderer/pepper/ppb_video_decoder_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 "content/renderer/pepper/ppb_video_decoder_impl.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 206 matching lines @@
     return PP_ERROR_INPROGRESS;
 
   FlushCommandBuffer();
   decoder_->Reset();
   return PP_OK_COMPLETIONPENDING;
 }
 
 void PPB_VideoDecoder_Impl::Destroy() {
   FlushCommandBuffer();
 
-  if (decoder_)
-    decoder_.release()->Destroy();
+  decoder_.reset();
   ppp_videodecoder_ = NULL;
 
   ::ppapi::PPB_VideoDecoder_Shared::Destroy();
 }
 
 void PPB_VideoDecoder_Impl::ProvidePictureBuffers(
     uint32 requested_num_of_buffers,
     const gfx::Size& dimensions,
     uint32 texture_target) {
   DCHECK(RenderThreadImpl::current());
@@ skipping 50 matching lines @@
   DCHECK(RenderThreadImpl::current());
   RunBitstreamBufferCallback(bitstream_buffer_id, PP_OK);
 }
 
 void PPB_VideoDecoder_Impl::NotifyFlushDone() {
   DCHECK(RenderThreadImpl::current());
   RunFlushCallback(PP_OK);
 }
 
 }  // namespace content