Revert 117399 - Make it possible to have 1 PpapiGlobals per thread. Update unit tests.

ppapi/proxy/host_dispatcher.cc

Index: ppapi/proxy/host_dispatcher.cc
===================================================================
--- ppapi/proxy/host_dispatcher.cc	(revision 117413)
+++ ppapi/proxy/host_dispatcher.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.
 
@@ -71,7 +71,9 @@
     g_module_to_dispatcher = new ModuleToDispatcherMap;
   (*g_module_to_dispatcher)[pp_module_] = this;
 
-  SetSerializationRules(new HostVarSerializationRules(module));
+  const PPB_Var* var_interface =
+      static_cast<const PPB_Var*>(local_get_interface(PPB_VAR_INTERFACE));
+  SetSerializationRules(new HostVarSerializationRules(var_interface, module));
 
   ppb_proxy_ = reinterpret_cast<const PPB_Proxy_Private*>(
       local_get_interface(PPB_PROXY_PRIVATE_INTERFACE));