Implemented shared memory as an NPObject.

o3d/gpu_plugin/gpu_plugin_object.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 <stdlib.h>
 
 #include "base/logging.h"
 #include "o3d/gpu_plugin/np_utils/np_utils.h"
 #include "o3d/gpu_plugin/gpu_plugin_object.h"
 
 namespace o3d {
 namespace gpu_plugin {
 
 namespace {
 const int32 kCommandBufferSize = 1024;
 }  // namespace anonymous
 
 const NPUTF8 GPUPluginObject::kPluginType[] =
     "application/vnd.google.chrome.gpu-plugin";
 
 GPUPluginObject::GPUPluginObject(NPP npp)
     : npp_(npp),
-      status_(CREATED),
-      shared_memory_(NULL) {
+      status_(CREATED) {
   memset(&window_, 0, sizeof(window_));
 }
 
 NPError GPUPluginObject::New(NPMIMEType plugin_type,
                              int16 argc,
                              char* argn[],
                              char* argv[],
                              NPSavedData* saved) {
   if (status_ != CREATED)
     return NPERR_GENERIC_ERROR;
@@ skipping 18 matching lines @@
 }
 
 int16 GPUPluginObject::HandleEvent(NPEvent* event) {
   return 0;
 }
 
 NPError GPUPluginObject::Destroy(NPSavedData** saved) {
   if (status_ != INITIALIZED)
     return NPERR_GENERIC_ERROR;
 
-  if (shared_memory_) {
-    NPBrowser::get()->UnmapSharedMemory(npp_, shared_memory_);
-  }
-
   command_buffer_object_ = NPObjectPointer<CommandBuffer>();
 
   status_ = DESTROYED;
 
   return NPERR_NO_ERROR;
 }
 
 void GPUPluginObject::Release() {
   DCHECK(status_ != INITIALIZED);
   NPBrowser::get()->ReleaseObject(this);
@@ skipping 11 matching lines @@
   command_buffer_object_ = NPCreateObject<CommandBuffer>(npp_);
   if (!command_buffer_object_->Initialize(kCommandBufferSize)) {
     command_buffer_object_ = NPObjectPointer<CommandBuffer>();
   }
 
   return command_buffer_object_;
 }
 
 }  // namespace gpu_plugin
 }  // namespace o3d