Implemented shared memory as an NPObject.

o3d/gpu_plugin/np_utils/np_browser_stub.cc

 // Copyright (c) 2006-2008 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 "o3d/gpu_plugin/np_utils/np_browser_stub.h"
 #include "base/logging.h"
 
 namespace o3d {
 namespace gpu_plugin {
 
@@ skipping 85 matching lines @@
                     NPIdentifier name,
                     const NPVariant* args,
                     uint32_t num_args,
                     NPVariant* result) {
   return object->_class->invoke(object, name, args, num_args, result);
 }
 
 NPObject* StubNPBrowser::GetWindowNPObject(NPP npp) {
   return NULL;
 }
-
-
-NPSharedMemory* StubNPBrowser::MapSharedMemory(NPP id,
-                                        NPObject* object,
-                                        size_t size,
-                                        bool read_only) {
-  return NULL;
-}
-
-void StubNPBrowser::UnmapSharedMemory(NPP id,
-                               NPSharedMemory* shared_memory) {
-}
 }  // namespace gpu_plugin
 }  // namespace o3d