PPAPI: Add unlocking for PPP calls and callbacks. Add more locking.

ppapi/proxy/ppp_video_decoder_proxy.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/proxy/ppp_video_decoder_proxy.h"
 
 #include "ppapi/proxy/host_dispatcher.h"
 #include "ppapi/proxy/plugin_globals.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 104 matching lines @@
   IPC_END_MESSAGE_MAP()
   DCHECK(handled);
   return handled;
 }
 
 void PPP_VideoDecoder_Proxy::OnMsgProvidePictureBuffers(
     const HostResource& decoder, uint32_t req_num_of_bufs,
     const PP_Size& dimensions) {
   PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
       PluginResourceForHostResource(decoder);
-  ppp_video_decoder_impl_->ProvidePictureBuffers(
-      decoder.instance(), plugin_decoder, req_num_of_bufs, &dimensions);
+  CallWhileUnlocked(ppp_video_decoder_impl_->ProvidePictureBuffers,
+                    decoder.instance(),
+                    plugin_decoder,
+                    req_num_of_bufs,
+                    &dimensions);
 }
 
 void PPP_VideoDecoder_Proxy::OnMsgDismissPictureBuffer(
     const HostResource& decoder, int32_t picture_id) {
   PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
       PluginResourceForHostResource(decoder);
-  ppp_video_decoder_impl_->DismissPictureBuffer(
-      decoder.instance(), plugin_decoder, picture_id);
+  CallWhileUnlocked(ppp_video_decoder_impl_->DismissPictureBuffer,
+                    decoder.instance(),
+                    plugin_decoder,
+                    picture_id);
 }
 
 void PPP_VideoDecoder_Proxy::OnMsgPictureReady(
     const HostResource& decoder, const PP_Picture_Dev& picture) {
   PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
       PluginResourceForHostResource(decoder);
-  ppp_video_decoder_impl_->PictureReady(
-      decoder.instance(), plugin_decoder, &picture);
+  CallWhileUnlocked(ppp_video_decoder_impl_->PictureReady,
+                    decoder.instance(),
+                    plugin_decoder,
+                    &picture);
 }
 
 void PPP_VideoDecoder_Proxy::OnMsgNotifyError(
     const HostResource& decoder, PP_VideoDecodeError_Dev error) {
   PP_Resource plugin_decoder = PluginGlobals::Get()->plugin_resource_tracker()->
       PluginResourceForHostResource(decoder);
-  ppp_video_decoder_impl_->NotifyError(
-      decoder.instance(), plugin_decoder, error);
+  CallWhileUnlocked(ppp_video_decoder_impl_->NotifyError,
+                    decoder.instance(),
+                    plugin_decoder,
+                    error);
 }
 
 }  // namespace proxy
 }  // namespace ppapi