PPAPI: Force async callback invocation option.

webkit/plugins/ppapi/ppb_surface_3d_impl.cc

Index: webkit/plugins/ppapi/ppb_surface_3d_impl.cc
===================================================================
--- webkit/plugins/ppapi/ppb_surface_3d_impl.cc	(revision 89886)
+++ webkit/plugins/ppapi/ppb_surface_3d_impl.cc	(working copy)
@@ -9,11 +9,14 @@
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "ppapi/c/dev/ppb_graphics_3d_dev.h"
 #include "ppapi/c/dev/ppp_graphics_3d_dev.h"
+#include "ppapi/thunk/common.h"
 #include "webkit/plugins/ppapi/common.h"
 #include "webkit/plugins/ppapi/plugin_module.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 #include "webkit/plugins/ppapi/ppb_context_3d_impl.h"
 
+using ppapi::thunk::MayForceCallback;
+
 namespace webkit {
 namespace ppapi {
 
@@ -56,7 +59,7 @@
                     PP_CompletionCallback callback) {
   scoped_refptr<PPB_Surface3D_Impl> surface(
       Resource::GetAs<PPB_Surface3D_Impl>(surface_id));
-  return surface->SwapBuffers(callback);
+  return MayForceCallback(callback, surface->SwapBuffers(callback));
 }
 
 const PPB_Surface3D_Dev ppb_surface3d = {