Make ~PPB_VideoDecoder_Impl() Destroy() its decoder host for hygiene.

webkit/plugins/ppapi/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 "webkit/plugins/ppapi/ppb_video_decoder_impl.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 26 matching lines @@
     : PPB_VideoDecoder_Shared(instance),
       ppp_videodecoder_(NULL) {
   PluginModule* plugin_module = ResourceHelper::GetPluginModule(this);
   if (plugin_module) {
     ppp_videodecoder_ = static_cast<const PPP_VideoDecoder_Dev*>(
         plugin_module->GetPluginInterface(PPP_VIDEODECODER_DEV_INTERFACE));
   }
 }
 
 PPB_VideoDecoder_Impl::~PPB_VideoDecoder_Impl() {
+  Destroy();
 }
 
 // Convert PP_VideoDecoder_Profile to media::VideoCodecProfile.
 static media::VideoCodecProfile PPToMediaProfile(
     const PP_VideoDecoder_Profile pp_profile) {
   switch (pp_profile) {
     case PP_VIDEODECODER_H264PROFILE_NONE:
       // HACK: PPAPI contains a bogus "none" h264 profile that doesn't
       // correspond to anything in h.264; but a number of released chromium
       // versions silently promoted this to Baseline profile, so we retain that
@@ skipping 209 matching lines @@
 void PPB_VideoDecoder_Impl::NotifyFlushDone() {
   RunFlushCallback(PP_OK);
 }
 
 void PPB_VideoDecoder_Impl::NotifyInitializeDone() {
   NOTREACHED() << "PlatformVideoDecoder::Initialize() is synchronous!";
 }
 
 }  // namespace ppapi
 }  // namespace webkit