Add PPAPI tests for VideoSource and VideoDestination resources.

ppapi/thunk/ppb_video_destination_private_thunk.cc

 // Copyright (c) 2013 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 "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/pp_video_frame_private.h"
 #include "ppapi/c/private/ppb_video_destination_private.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
@@ skipping 27 matching lines @@
   if (enter.failed())
     return enter.retval();
   return enter.SetResult(enter.object()->Open(stream_url, enter.callback()));
 }
 
 int32_t PutFrame(PP_Resource destination,
                  const PP_VideoFrame_Private* frame) {
   EnterResource<PPB_VideoDestination_Private_API> enter(destination, true);
   if (enter.failed())
     return enter.retval();
-  return enter.SetResult(enter.object()->PutFrame(*frame));
+  return enter.object()->PutFrame(*frame);
 }
 
 void Close(PP_Resource destination) {
   EnterResource<PPB_VideoDestination_Private_API> enter(destination, true);
   if (enter.succeeded())
     enter.object()->Close();
 }
 
 const PPB_VideoDestination_Private_0_1
     g_ppb_video_destination_private_thunk_0_1 = {
   &Create,
   &IsVideoDestination,
   &Open,
   &PutFrame,
   &Close
 };
 
 }  // namespace
 
 const PPB_VideoDestination_Private_0_1*
     GetPPB_VideoDestination_Private_0_1_Thunk() {
   return &g_ppb_video_destination_private_thunk_0_1;
 }
 
 }  // namespace thunk
 }  // namespace ppapi