PPAPI NaCl Proxy: optimize PPB_Fullscreen::IsFullscreen.

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

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_instance_data.cc
===================================================================
--- ppapi/native_client/src/shared/ppapi_proxy/plugin_instance_data.cc	(revision 107024)
+++ ppapi/native_client/src/shared/ppapi_proxy/plugin_instance_data.cc	(working copy)
@@ -45,11 +45,21 @@
 // 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->position_ = position;
+    instance->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