PPAPI: Force async callback invocation option.

webkit/plugins/ppapi/ppb_graphics_3d_impl.cc

 // Copyright (c) 2010 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 "webkit/plugins/ppapi/ppb_graphics_3d_impl.h"
 
 #include "base/logging.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "webkit/plugins/ppapi/common.h"
@@ skipping 50 matching lines @@
   return 0;
 }
 
 int32_t SetAttribs(PP_Resource context, int32_t* attrib_list) {
   // TODO(alokp): Implement me.
   return 0;
 }
 
 int32_t SwapBuffers(PP_Resource context, PP_CompletionCallback callback) {
   // TODO(alokp): Implement me.
-  return 0;
+  return MayForceCallback(callback, PP_OK);
 }
 
 const PPB_Graphics3D_Dev ppb_graphics3d = {
   &GetConfigs,
   &GetConfigAttribs,
   &GetString,
   &Create,
   &IsGraphics3D,
   &GetAttribs,
   &SetAttribs,
@@ skipping 19 matching lines @@
 
 bool PPB_Graphics3D_Impl::Init(PP_Config3D_Dev config,
                                PP_Resource share_context,
                                const int32_t* attrib_list) {
   // TODO(alokp): Implement me.
   return false;
 }
 
 }  // namespace ppapi
 }  // namespace webkit
-