PPAPI NaCl Proxy: optimize PPB_Fullscreen::IsFullscreen.

ppapi/native_client/src/shared/ppapi_proxy/plugin_instance_data.cc

 /*
  * Copyright 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 "native_client/src/shared/ppapi_proxy/plugin_instance_data.h"
 
 #include <tr1/unordered_map>
 
@@ skipping 27 matching lines @@
 }
 
 // static
 void PluginInstanceData::DidDestroy(PP_Instance id) {
   GetInstanceMap().erase(id);
 }
 
 // static
 void PluginInstanceData::DidChangeView(PP_Instance id,
                                        PP_Rect position,
-                                       PP_Rect clip) {
+                                       PP_Rect clip,
+                                       bool is_fullscreen) {
   PluginInstanceData* instance = FromPP(id);
   if (instance) {
     instance->set_position(position);
+    instance->set_is_fullscreen(is_fullscreen);
   }
 }
 
+// static
+bool PluginInstanceData::IsFullscreen(PP_Instance id) {
+  PluginInstanceData* instance = FromPP(id);
+  if (instance)
+    return instance->is_fullscreen();
+  return false;
+}
+
 }  // namespace ppapi_proxy