Trivial fixes to PPAPI

ppapi/proxy/ppp_instance_proxy_test.cc

 // 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.
 
 #include "base/synchronization/waitable_event.h"
 #include "ipc/ipc_message_utils.h"
 #include "ppapi/c/dev/ppb_fullscreen_dev.h"
+#include "ppapi/c/pp_var.h"
 #include "ppapi/c/ppb_core.h"
 #include "ppapi/c/ppb_url_loader.h"
 #include "ppapi/c/ppp_instance.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppapi_proxy_test.h"
 
 namespace pp {
 namespace proxy {
 
 namespace {
@@ skipping 292 matching lines @@
 
   //  TODO(dmichael): Need to mock out a resource Tracker to be able to test
   //                  HandleResourceLoad. It also requires
   //                  PPB_Core.AddRefResource and for PPB_URLLoader to be
   //                  registered.
 }
 
 }  // namespace proxy
 }  // namespace pp