Revert 121901 - PPAPI: Add unlocking for PPP calls and callbacks. Add more locking.

ppapi/proxy/ppp_instance_private_proxy.cc

Index: ppapi/proxy/ppp_instance_private_proxy.cc
===================================================================
--- ppapi/proxy/ppp_instance_private_proxy.cc	(revision 121902)
+++ ppapi/proxy/ppp_instance_private_proxy.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -12,7 +12,6 @@
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
-#include "ppapi/shared_impl/proxy_lock.h"
 
 namespace ppapi {
 namespace proxy {
@@ -75,8 +74,7 @@
     PP_Instance instance,
     SerializedVarReturnValue result) {
   result.Return(dispatcher(),
-                CallWhileUnlocked(ppp_instance_private_impl_->GetInstanceObject,
-                                  instance));
+                ppp_instance_private_impl_->GetInstanceObject(instance));
 }
 
 }  // namespace proxy